TooBug

var less = require('less');
var fs = require('fs');
var path = require('path');
var SourceMapGenerator = require('source-map').SourceMapGenerator

function errfn(callback) {
    return function (err) {
        if (err) callback.call(this, err);
        else callback.apply(this, [].slice.apply(arguments).slice(1));
    }