Fix Latin1 man directories for new locale names

etc/Makefile

@@ -171,7 +171,15 @@ distrib-dirs:
 	mtree -deU ${MTREE_FOLLOWS_SYMLINKS} -f ${.CURDIR}/mtree/BSD.include.dist \
 		-p ${DESTDIR}/usr/libdata/perl/5.6.0/mach
 	cd ${DESTDIR}/; rm -f ${DESTDIR}/sys; ln -s usr/src/sys sys
-	cd ${DESTDIR}/usr/share/man/en.ISO_8859-1; ln -sf ../man* .
+	cd ${DESTDIR}/usr/share/man/en.ISO8859-1; ln -sf ../man* .
+	cd ${DESTDIR}/usr/share/man; \
+	set - `grep "^[a-zA-Z]" ${.CURDIR}/man.alias`; \
+	while [ $$# -gt 0 ] ; \
+	do \
+		rm -rf "$$1"; \
+		ln -s "$$2" "$$1"; \
+		shift; shift; \
+	done
 	cd ${DESTDIR}/usr/share/locale; \
 	set - `grep "^[a-zA-Z]" ${.CURDIR}/locale.alias`; \
 	while [ $$# -gt 0 ] ; \

etc/man.alias

@@ -0,0 +1,5 @@
+# $FreeBSD$
+
+en.ISO_8859-1   en.ISO8859-1
+en.ISO8859-15   en.ISO8859-1
+en.ISO_8859-15  en.ISO8859-1

etc/mtree/BSD.usr.dist

@@ -660,7 +660,7 @@
             ..
             catn
             ..
-            en.ISO_8859-1   uname=root
+            en.ISO8859-1        uname=root
                 cat1
                 ..
                 cat1aout