diff --git a/sys/vm/default_pager.c b/sys/vm/default_pager.c
index ce9e146285af..7ea507f0ad03 100644
--- a/sys/vm/default_pager.c
+++ b/sys/vm/default_pager.c
@@ -11,7 +11,7 @@
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgment:
+ *    must display the following acknowledgement:
  *	This product includes software developed by David Greenman.
  * 4. The name of the author may not be used to endorse or promote products
  *    derived from this software without specific prior written permission.
diff --git a/sys/vm/device_pager.c b/sys/vm/device_pager.c
index 1be10febd333..85cad8111cd2 100644
--- a/sys/vm/device_pager.c
+++ b/sys/vm/device_pager.c
@@ -16,7 +16,7 @@
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgment:
+ *    must display the following acknowledgement:
  *	This product includes software developed by the University of
  *	California, Berkeley and its contributors.
  * 4. Neither the name of the University nor the names of its contributors
diff --git a/sys/vm/swap_pager.c b/sys/vm/swap_pager.c
index 6225bb12241e..ca7a3fe5b4e5 100644
--- a/sys/vm/swap_pager.c
+++ b/sys/vm/swap_pager.c
@@ -18,7 +18,7 @@
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgment:
+ *    must display the following acknowledgement:
  *	This product includes software developed by the University of
  *	California, Berkeley and its contributors.
  * 4. Neither the name of the University nor the names of its contributors
diff --git a/sys/vm/vm_fault.c b/sys/vm/vm_fault.c
index 7d518af46584..698de1a301ab 100644
--- a/sys/vm/vm_fault.c
+++ b/sys/vm/vm_fault.c
@@ -19,7 +19,7 @@
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgment:
+ *    must display the following acknowledgement:
  *	This product includes software developed by the University of
  *	California, Berkeley and its contributors.
  * 4. Neither the name of the University nor the names of its contributors
@@ -626,7 +626,7 @@ RetryFault:;
 				 */
 				(fs.object->ref_count == 1) &&
 				/*
-				 * None else can look this object up
+				 * No one else can look this object up
 				 */
 				(fs.object->handle == NULL) &&
 				/*
diff --git a/sys/vm/vm_glue.c b/sys/vm/vm_glue.c
index 3d4c6dacbd43..0749df39d7f4 100644
--- a/sys/vm/vm_glue.c
+++ b/sys/vm/vm_glue.c
@@ -14,7 +14,7 @@
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgment:
+ *    must display the following acknowledgement:
  *	This product includes software developed by the University of
  *	California, Berkeley and its contributors.
  * 4. Neither the name of the University nor the names of its contributors
diff --git a/sys/vm/vm_init.c b/sys/vm/vm_init.c
index 1cfcfc74e5c9..6357e4546019 100644
--- a/sys/vm/vm_init.c
+++ b/sys/vm/vm_init.c
@@ -14,7 +14,7 @@
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgment:
+ *    must display the following acknowledgement:
  *	This product includes software developed by the University of
  *	California, Berkeley and its contributors.
  * 4. Neither the name of the University nor the names of its contributors
diff --git a/sys/vm/vm_kern.c b/sys/vm/vm_kern.c
index 1a00c01d407f..9b8584cb3d98 100644
--- a/sys/vm/vm_kern.c
+++ b/sys/vm/vm_kern.c
@@ -14,7 +14,7 @@
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgment:
+ *    must display the following acknowledgement:
  *	This product includes software developed by the University of
  *	California, Berkeley and its contributors.
  * 4. Neither the name of the University nor the names of its contributors
diff --git a/sys/vm/vm_map.c b/sys/vm/vm_map.c
index 8125f06c54b9..0d2445151de4 100644
--- a/sys/vm/vm_map.c
+++ b/sys/vm/vm_map.c
@@ -14,7 +14,7 @@
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgment:
+ *    must display the following acknowledgement:
  *	This product includes software developed by the University of
  *	California, Berkeley and its contributors.
  * 4. Neither the name of the University nor the names of its contributors
diff --git a/sys/vm/vm_meter.c b/sys/vm/vm_meter.c
index 01b845b3c423..3cb98ada5722 100644
--- a/sys/vm/vm_meter.c
+++ b/sys/vm/vm_meter.c
@@ -11,7 +11,7 @@
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgment:
+ *    must display the following acknowledgement:
  *	This product includes software developed by the University of
  *	California, Berkeley and its contributors.
  * 4. Neither the name of the University nor the names of its contributors
diff --git a/sys/vm/vm_mmap.c b/sys/vm/vm_mmap.c
index 26d00e7231d6..53462f4bccf4 100644
--- a/sys/vm/vm_mmap.c
+++ b/sys/vm/vm_mmap.c
@@ -16,7 +16,7 @@
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgment:
+ *    must display the following acknowledgement:
  *	This product includes software developed by the University of
  *	California, Berkeley and its contributors.
  * 4. Neither the name of the University nor the names of its contributors
diff --git a/sys/vm/vm_object.c b/sys/vm/vm_object.c
index 057a96c148a0..0b961fd55589 100644
--- a/sys/vm/vm_object.c
+++ b/sys/vm/vm_object.c
@@ -14,7 +14,7 @@
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgment:
+ *    must display the following acknowledgement:
  *	This product includes software developed by the University of
  *	California, Berkeley and its contributors.
  * 4. Neither the name of the University nor the names of its contributors
diff --git a/sys/vm/vm_page.c b/sys/vm/vm_page.c
index f3d8e4899f03..1f1a066ee37d 100644
--- a/sys/vm/vm_page.c
+++ b/sys/vm/vm_page.c
@@ -14,7 +14,7 @@
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgment:
+ *    must display the following acknowledgement:
  *	This product includes software developed by the University of
  *	California, Berkeley and its contributors.
  * 4. Neither the name of the University nor the names of its contributors
diff --git a/sys/vm/vm_pageout.c b/sys/vm/vm_pageout.c
index 11f08c271f20..91bf4ee8475b 100644
--- a/sys/vm/vm_pageout.c
+++ b/sys/vm/vm_pageout.c
@@ -18,7 +18,7 @@
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgment:
+ *    must display the following acknowledgement:
  *	This product includes software developed by the University of
  *	California, Berkeley and its contributors.
  * 4. Neither the name of the University nor the names of its contributors
diff --git a/sys/vm/vm_pager.c b/sys/vm/vm_pager.c
index 95a6d9763e88..2f84d4526961 100644
--- a/sys/vm/vm_pager.c
+++ b/sys/vm/vm_pager.c
@@ -14,7 +14,7 @@
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgment:
+ *    must display the following acknowledgement:
  *	This product includes software developed by the University of
  *	California, Berkeley and its contributors.
  * 4. Neither the name of the University nor the names of its contributors
diff --git a/sys/vm/vm_swap.c b/sys/vm/vm_swap.c
index 8258d96e76b0..5b2b51424133 100644
--- a/sys/vm/vm_swap.c
+++ b/sys/vm/vm_swap.c
@@ -11,7 +11,7 @@
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgment:
+ *    must display the following acknowledgement:
  *	This product includes software developed by the University of
  *	California, Berkeley and its contributors.
  * 4. Neither the name of the University nor the names of its contributors
diff --git a/sys/vm/vm_unix.c b/sys/vm/vm_unix.c
index 63867c27ec4c..d5e9f58aab60 100644
--- a/sys/vm/vm_unix.c
+++ b/sys/vm/vm_unix.c
@@ -16,7 +16,7 @@
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgment:
+ *    must display the following acknowledgement:
  *	This product includes software developed by the University of
  *	California, Berkeley and its contributors.
  * 4. Neither the name of the University nor the names of its contributors
diff --git a/sys/vm/vnode_pager.c b/sys/vm/vnode_pager.c
index 6482f5e7b168..fee5555d3d2a 100644
--- a/sys/vm/vnode_pager.c
+++ b/sys/vm/vnode_pager.c
@@ -18,7 +18,7 @@
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgment:
+ *    must display the following acknowledgement:
  *	This product includes software developed by the University of
  *	California, Berkeley and its contributors.
  * 4. Neither the name of the University nor the names of its contributors