Merge pull request #2019 from gdelhumeau/remove-done-output

Remove the "done" message displayed at the end of the compilation with Rhino.

lib/less/rhino.js

@@ -445,5 +445,4 @@ function writeFile(filename, content) {
         writeError(e, options);
         quit(1);
     }
-    console.log("done");
 }(arguments));