styling correction

lib/model.js

@@ -622,12 +622,12 @@ comparisonFunctions.$size = function (obj, value) {
 
     return (obj.length == value);
 };
-comparisonFunctions.$elemMatch = function (obj,value) {
+comparisonFunctions.$elemMatch = function (obj, value) {
   if (!util.isArray(obj)) { return false; }
   var i = obj.length;
   var result = false;   // Initialize result
   while (i--) {
-    if (match(obj[i],value)) {   // If match for array element, return true
+    if (match(obj[i], value)) {   // If match for array element, return true
       result = true;
       break;
     }