Correct the install path of man.local to fix following error:
    /yocto/build/tmp/sysroots/x86_64-linux/usr/share/groff/1.22.2/tmac/an-old.tmac:690: warning: can't find macro file `man.local'

Signed-off-by: Zhenhua Luo <zhenhua.luo@freescale.com>
Upstream-Status: Pending

--- groff-1.22.2/tmac/Makefile.sub.orig	2013-02-07 20:06:08.000000000 +0800
+++ groff-1.22.2/tmac/Makefile.sub	2013-06-26 19:11:23.572259001 +0800
@@ -114,9 +114,9 @@
 	  rm -f $(DESTDIR)$(mdocdir)/$$f; \
 	  $(INSTALL_DATA) $$f-s $(DESTDIR)$(mdocdir)/$$f; \
 	done
-	-test -f $(DESTDIR)$(localtmacdir)/man.local || \
+	-test -f $(DESTDIR)$(tmacdir)/man.local || \
 	  $(INSTALL_DATA) $(srcdir)/man.local \
-	    $(DESTDIR)$(localtmacdir)/man.local
+	    $(DESTDIR)$(tmacdir)/man.local
 	-test -f $(DESTDIR)$(localtmacdir)/mdoc.local || \
 	  $(INSTALL_DATA) mdoc.local-s $(DESTDIR)$(localtmacdir)/mdoc.local
 
@@ -158,9 +158,9 @@
 	-rm -f $(DESTDIR)$(tmacdir)/$(tmac_s_prefix)s.tmac
 	-rm -f $(DESTDIR)$(tmacdir)/$(tmac_an_prefix)an.tmac
 	-rm -f $(DESTDIR)$(tmacdir)/www.tmac
-	-if cmp -s $(DESTDIR)$(localtmacdir)/man.local \
+	-if cmp -s $(DESTDIR)$(tmacdir)/man.local \
 	           $(srcdir)/man.local; then \
-	  rm -f $(DESTDIR)$(localtmacdir)/man.local; \
+	  rm -f $(DESTDIR)$(tmacdir)/man.local; \
 	fi
 	-if cmp -s $(DESTDIR)$(localtmacdir)/mdoc.local \
 	           $(srcdir)/mdoc.local; then \
