git-svn: use path accessor for Git::SVN objects

The accessors should improve maintainability and enforce
consistent access to Git::SVN objects.

Signed-off-by: Eric Wong <normalperson@yhbt.net>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>

perl/Git/SVN/Ra.pm

@@ -416,7 +416,7 @@ sub gs_fetch_loop_common {
 		}
 		$SVN::Error::handler = $err_handler;
 
-		my %exists = map { $_->{path} => $_ } @$gsv;
+		my %exists = map { $_->path => $_ } @$gsv;
 		foreach my $r (sort {$a <=> $b} keys %revs) {
 			my ($paths, $logged) = @{$revs{$r}};