The .Fn function

The ... 2 system call

lib/libc/gen/dlinfo.3

@@ -231,8 +231,9 @@ For simplicity, error checking has been omitted.
       }
 .Ed
 .Sh RETURN VALUES
+The
 .Fn dlinfo
-returns 0 on success, or -1 if error occured.
+function returns 0 on success, or -1 if error occured.
 Whenever an error has been detected, a message detailing it can
 be retrieved via a call to
 .Fn dlerror .

lib/libc/sys/open.2

@@ -179,8 +179,9 @@ and
 .Pp
 The system imposes a limit on the number of file descriptors
 open simultaneously by one process.
-.Xr Getdtablesize 2
-returns the current system limit.
+The
+.Xr getdtablesize 2
+system call returns the current system limit.
 .Sh RETURN VALUES
 If successful,
 .Fn open

lib/libc/sys/sigaction.2

@@ -264,8 +264,9 @@ or
 all signals, the signal mask, the signal stack,
 and the restart/interrupt flags are inherited by the child.
 .Pp
-.Xr Execve 2
-reinstates the default
+The
+.Xr execve 2
+system call reinstates the default
 action for all signals which were caught and
 resets all signals to be caught on the user stack.
 Ignored signals remain ignored;

lib/libc/sys/socket.2

@@ -226,10 +226,11 @@ The operation of sockets is controlled by socket level
 .Em options .
 These options are defined in the file
 .Ao Pa sys/socket.h Ac .
-.Xr Setsockopt 2
+The
+.Xr setsockopt 2
 and
 .Xr getsockopt 2
-are used to set and get options, respectively.
+system calls are used to set and get options, respectively.
 .Sh RETURN VALUES
 A -1 is returned if an error occurs, otherwise the return
 value is a descriptor referencing the socket.