suppress warnings from local message cache fopen()

diff --git a/includes/MessageCache.php b/includes/MessageCache.php
index a5c99f6..c6717ef 100755 (executable)
--- a/includes/MessageCache.php
+++ b/includes/MessageCache.php
@@ -70,7 +70,9 @@ class MessageCache {
                
                $filename = "$wgLocalMessageCache/messages-$wgDBname";
 
+               wfSuppressWarnings();
                $file = fopen( $filename, 'r' );
+               wfRestoreWarnings();
                if ( !$file ) {
                        return;
                }