Revert "switched to canonical two-space indentation in __bind helper"

This reverts commit 6a40807330.

src/nodes.coffee

@@ -1770,16 +1770,16 @@ UTILITIES =
   # Create a function bound to the current value of "this".
   bind: '''
     (Function.prototype.bind ? Function.prototype.call.bind(Function.prototype.bind) : function(fn, me){
-      return function bound(){
-        if (!(this instanceof bound))
-          return fn.apply(me, arguments);
-        var ctor = function(){};
-        ctor.prototype = fn.prototype;
-        var obj = new ctor();
-        fn.apply(obj, arguments);
-        return obj;
-      };
-    })
+		return function bound(){
+			if (!(this instanceof bound))
+				return fn.apply(me, arguments);
+			var ctor = function(){};
+			ctor.prototype = fn.prototype;
+			var obj = new ctor();
+			fn.apply(obj, arguments);
+			return obj;
+		};
+	})
   '''
 
   # Discover if an item is in an array.