Rename man1 and man7 variables to man1dir and man7dir

This patch renames man1 and man7 variables to man1dir and man7dir,
according to "Makefile Conventions: Variables for Installation
Directories" in make.info of GNU Make.

Signed-off-by: Jakub Narebski <jnareb@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
diff --git a/Documentation/Makefile b/Documentation/Makefile
index ca6b77d..cc83610 100644
--- a/Documentation/Makefile
+++ b/Documentation/Makefile
@@ -27,8 +27,8 @@
 prefix?=$(HOME)
 bindir?=$(prefix)/bin
 mandir?=$(prefix)/man
-man1=$(mandir)/man1
-man7=$(mandir)/man7
+man1dir=$(mandir)/man1
+man7dir=$(mandir)/man7
 # DESTDIR=
 
 INSTALL?=install
@@ -52,9 +52,9 @@
 man7: $(DOC_MAN7)
 
 install: man
-	$(INSTALL) -d -m755 $(DESTDIR)$(man1) $(DESTDIR)$(man7)
-	$(INSTALL) $(DOC_MAN1) $(DESTDIR)$(man1)
-	$(INSTALL) $(DOC_MAN7) $(DESTDIR)$(man7)
+	$(INSTALL) -d -m755 $(DESTDIR)$(man1dir) $(DESTDIR)$(man7dir)
+	$(INSTALL) $(DOC_MAN1) $(DESTDIR)$(man1dir)
+	$(INSTALL) $(DOC_MAN7) $(DESTDIR)$(man7dir)
 
 
 #
diff --git a/Makefile b/Makefile
index b8fe669..ccd7c62 100644
--- a/Makefile
+++ b/Makefile
@@ -714,8 +714,8 @@
 	rm -fr .doc-tmp-dir
 	mkdir .doc-tmp-dir .doc-tmp-dir/man1 .doc-tmp-dir/man7
 	$(MAKE) -C Documentation DESTDIR=./ \
-		man1=../.doc-tmp-dir/man1 \
-		man7=../.doc-tmp-dir/man7 \
+		man1dir=../.doc-tmp-dir/man1 \
+		man7dir=../.doc-tmp-dir/man7 \
 		install
 	cd .doc-tmp-dir && $(TAR) cf ../$(manpages).tar .
 	gzip -n -9 -f $(manpages).tar
diff --git a/contrib/git-svn/Makefile b/contrib/git-svn/Makefile
index 1a6585e..8cac688 100644
--- a/contrib/git-svn/Makefile
+++ b/contrib/git-svn/Makefile
@@ -3,7 +3,7 @@
 prefix?=$(HOME)
 bindir?=$(prefix)/bin
 mandir?=$(prefix)/man
-man1=$(mandir)/man1
+man1dir=$(mandir)/man1
 INSTALL?=install
 doc_conf=../../Documentation/asciidoc.conf
 -include ../../config.mak
@@ -17,7 +17,7 @@
 	$(INSTALL) git-svn $(DESTDIR)$(bindir)
 
 install-doc: doc
-	$(INSTALL) git-svn.1 $(DESTDIR)$(man1)
+	$(INSTALL) git-svn.1 $(DESTDIR)$(man1dir)
 
 doc: git-svn.1
 git-svn.1 : git-svn.xml