ZP-203

- changed: log the message about failed ChangesSink creation with WARN

git-svn-id: https://z-push.org/svn/z-push/trunk@1415 b7dd7b3b-3a3c-0410-9da9-bee62a6cc5b5

src/backend/zarafa/zarafa.php

@@ -908,7 +908,7 @@ class BackendZarafa implements IBackend, ISearchProvider {
         $this->changesSink = @mapi_sink_create();
 
         if (! $this->changesSink || mapi_last_hresult()) {
-            ZLog::Write(LOGLEVEL_DEBUG, sprintf("ZarafaBackend->HasChangesSink(): sink could not be created with  0x%X", mapi_last_hresult()));
+            ZLog::Write(LOGLEVEL_WARN, sprintf("ZarafaBackend->HasChangesSink(): sink could not be created with  0x%X", mapi_last_hresult()));
             return false;
         }