fixed tabs

lib/main.js

@@ -281,9 +281,9 @@ var web3 = {
             unit++;
         }
         var s = val.toString().length < val.toFixed(2).length ? val.toString() : val.toFixed(2);
-		var replaceFunction = function($0, $1, $2) {
+        var replaceFunction = function($0, $1, $2) {
-			return $1 + ',' + $2;
+            return $1 + ',' + $2;
-		};
+        };
 
         while (true) {
             var o = s;