Debug log the size of PUT/POSTs messages.

--HG--
extra : rebase_source : 67a4e2afd1c908cc9184c0866226a55c77a96292

services/sync/modules/resource.js

@@ -253,6 +253,7 @@ Resource.prototype = {
     // they have payload data.
     if ("PUT" == action || "POST" == action) {
       this.filterUpload();
+      this._log.debug(action + " Length: " + this._data.length);
       this._log.trace(action + " Body: " + this._data);
 
       let type = ('Content-Type' in this._headers)?