[fix] style changes

lib/http-proxy/common.js

@@ -133,17 +133,21 @@ common.getPort = function(req) {
  */
 
 common.urlJoin = function() {
-  var args = Array.prototype.slice.call(arguments);
-
-  // We do not want to mess with the query string. All we want to touch is the path.
-  var lastIndex = args.length-1;
-  var last = args[lastIndex]
-  var lastSegs = last.split('?')
-  args[lastIndex] = lastSegs[0]
+    //
+    // We do not want to mess with the query string. All we want to touch is the path.
+    //
+  var args = Array.prototype.slice.call(arguments),
+      lastIndex = args.length - 1,
+      last = args[lastIndex],
+      lastSegs = last.split('?'),
+      args[lastIndex] = lastSegs[0],
+      retSegs;
 
+  //
   // Join all strings, but remove empty strings so we don't get extra slashes from
   // joining e.g. ['', 'am']
-  var retSegs = [
+  //
+  retSegs = [
     args.filter(function filter(a) {
       return !!a;
     }).join('/').replace(/\/+/g, '/')