Fix formatting and switch to using the new matchesSelector method in Sizzle.

src/traversing.js

@@ -102,13 +102,14 @@ jQuery.fn.extend({
 
 		var ret = [];
 
-    for ( var i=0,j=this.length; i<j; i++ ) {
+		for ( var i = 0, j = this.length; i < j; i++ ) {
 			var cur = this[i];
 
 			while ( cur ) {
-        if ( pos ? pos.index(cur) > -1 : jQuery.find.matches(selectors, [cur]).length ) {
+				if ( pos ? pos.index(cur) > -1 : jQuery.find.matchesSelector(cur, selectors) ) {
 					ret.push( cur );
 					break;
+
 				} else {
 					cur = cur.parentNode;
 					if ( !cur.ownerDocument || cur === context ) {