fix(url-parser): bail early on validation when using domain socket

Author: mbroadst

lib/url_parser.js

@@ -212,6 +212,7 @@ function parseConnectionString(url, options) {
 
   for (let i = 0; i < hosts.length; i++) {
     let r = parser.parse(f('mongodb://%s', hosts[i].trim()));
+    if (r.path && r.path.indexOf('.sock') !== -1) continue;
     if (r.path && r.path.indexOf(':') !== -1) {
       // Not connecting to a socket so check for an extra slash in the hostname.
       // Using String#split as perf is better than match.