[PATCH] Fix git-diff-files for symlinks.

Again I am not sure why this was missed during the last round,
but git-diff-files mishandles symlinks on the filesystem.  This
patch fixes it.

Signed-off-by: Junio C Hamano <junkio@cox.net>

And I'm not sure why did I miss this patch before. Sorry.

Signed-off-by: Petr Baudis <pasky@ucw.cz>
diff --git a/diff-files.c b/diff-files.c
index c51edc3..28f1b13 100644
--- a/diff-files.c
+++ b/diff-files.c
@@ -126,7 +126,8 @@
 			continue;
 
 		oldmode = ntohl(ce->ce_mode);
-		mode = S_IFREG | ce_permissions(st.st_mode);
+		mode = (S_ISLNK(st.st_mode) ? S_IFLNK :
+			S_IFREG | ce_permissions(st.st_mode));
 
 		show_modified(oldmode, mode, ce->sha1, null_sha1,
 			      ce->name);