bug in read only access handling

git-svn-id: http://redmine.rubyforge.org/svn/trunk@1776 e93f8b46-1217-0410-a6f0-8f06a7374b81

extra/svn/Redmine.pm

@@ -200,7 +200,7 @@ sub access_handler {
   }
 
   my $method = $r->method;
-  return OK if defined $read_only_methods{$method};
+  return OK unless defined $read_only_methods{$method};
 
   my $project_id = get_project_identifier($r);