Improve getServers() logging

plugins/c9.vfs.client/endpoint.js

@@ -97,7 +97,9 @@ define(function(require, exports, module) {
         function getVfsEndpoint(version, callback) {
             getServers(function(err, _servers) {
                 if (err) {
-                    errorHandler.reportError(err);
+                    if (err.code !== "EDISCONNECT")
+                        errorHandler.reportError(new Error("Could not get list of VFS servers"), { cause: err });
+                    metrics.increment("vfs.failed.connect_getservers", 1, true);
                     initDefaultServers();
                     _servers = servers;
                 }