Makefile & .gitignore: ignore & clean "git.res", not "*.res"

Adjust the overly broad .gitignore and "make clean" rule added in
ce39c2e04c (Provide a Windows version resource for the git
executables., 2012-05-24).

For now this is merely a correctness fix, but needed because a
subsequent commit will want to check in *.res files elsewhere in the
tree, which we shouldn't have to "git add -f".

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

.gitignore

@@ -185,6 +185,7 @@
 /git-worktree
 /git-write-tree
 /git-core-*/?*
+/git.res
 /gitweb/GITWEB-BUILD-OPTIONS
 /gitweb/gitweb.cgi
 /gitweb/static/gitweb.js
@@ -225,7 +226,6 @@
 *.hcc
 *.obj
 *.lib
-*.res
 *.sln
 *.sp
 *.suo

Makefile

@@ -3409,7 +3409,7 @@ cocciclean:
 clean: profile-clean coverage-clean cocciclean
 	$(RM) -r .build
 	$(RM) po/git.pot po/git-core.pot
-	$(RM) *.res
+	$(RM) git.res
 	$(RM) $(OBJECTS)
 	$(RM) $(LIB_FILE) $(XDIFF_LIB) $(REFTABLE_LIB) $(REFTABLE_TEST_LIB)
 	$(RM) $(ALL_PROGRAMS) $(SCRIPT_LIB) $(BUILT_INS) git$X