git-svn: fix show-ignore

Looks like I broke it in 747fa12c
but never noticed.
Signed-off-by: NEric Wong <normalperson@yhbt.net>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

git-svn.perl

@@ -536,7 +536,7 @@ sub show_ignore {
 	my $repo;
 	$SVN ||= libsvn_connect($SVN_URL);
 	my $r = defined $_revision ? $_revision : $SVN->get_latest_revnum;
-	libsvn_traverse_ignore(\*STDOUT, $SVN->{svn_path}, $r);
+	libsvn_traverse_ignore(\*STDOUT, '', $r);
 }
 
 sub graft_branches {