gitweb: fix display of trees via PATH_INFO.

When adding a / to the URL, git should display the corresponding
tree object, but it has to remove the / first.
Signed-off-by: NMartin Waitz <tali@admingilde.org>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

gitweb/gitweb.perl

@@ -300,6 +300,7 @@ sub evaluate_path_info {
 		$pathname =~ s,^/+,,;
 		if (!$pathname || substr($pathname, -1) eq "/") {
 			$action  ||= "tree";
+			$pathname =~ s,/$,,;
 		} else {
 			$action  ||= "blob_plain";
 		}