Improvements

src/extensions/group-by/bootstrap-table-group-by.js

@@ -14,9 +14,10 @@
            if (o !== Object(o)) {
                throw new TypeError('Object.keys called on a non-object');
            }
-           var k=[],p;
+           var k = [],
+               p;
            for (p in o) {
-               if (Object.prototype.hasOwnProperty.call(o,p)) {
+               if (Object.prototype.hasOwnProperty.call(o, p)) {
                    k.push(p);
                }
            }