Update sample.js

Author: dabretin

test/input/mangle-prefix/sample.js

@@ -2,23 +2,19 @@ var Test = function() {
   this.someVar = 123;
 };
 
-
 Test.prototype.someMethod = function() {
   console.log(this.someVar);
 }
 
-
 Test.prototype.someOther = function() {
   console.log("other");
   this.someMethod();
   this.__special();
 }
 
-
 Test.prototype.__special = function() {
   console.log("special");
 }
 
-
 var oTest = new Test();
 oTest.someOther();