Update graham_scan.js

Author: lequant40

src/graham_scan.js

@@ -18,7 +18,7 @@ ConvexHullGrahamScan.prototype = {
     Point: function (x, y, name) {
         this.x = x;
         this.y = y;
-		this.name = name;
+	this.name = name;
     },
 
     _findPolarAngle: function (a, b) {