old_contents: 'use strict';
  var path = require('path');
  var async = require('async');
  var chalk = require('chalk');
  var spawn = require('cross-spawn');
  var grunt = require('grunt');
  
  module.exports = function (files, options, cb) {
    var failCount = 0;
  
    var filesToCheck = files.filter(function (src) {
      return path.basename(src)[0] !== '_' && grunt.file.exists(src);
    });
  
    async.eachLimit(filesToCheck, options.concurrencyCount, function (src, next) {
      var bin;
      var args;
  
      if (options.bundleExec) {
        bin = 'bundle';
        args = ['exec', 'sass', '--check', src];
      } else {
        bin = 'sass';
        args = ['--check', src];
      }
  
      grunt.verbose.writeln('Command: ' + bin + ' ' + args.join(' '));
  
      grunt.verbose.writeln('Checking file ' + chalk.cyan(src) + ' syntax.');
      spawn(bin, args, {stdio: 'inherit'})
        .on('error', grunt.warn)
        .on('close', function (code) {
          if (code > 0) {
            failCount++;
            grunt.log.error('Checking file ' + chalk.cyan(src) + ' - ' + chalk.red('failed') + '.');
          } else {
            grunt.verbose.ok('Checking file ' + chalk.cyan(src) + ' - ' + chalk.green('passed') + '.');
          }
  
          next();
        });
    }, function () {
      if (failCount > 0) {
        grunt.warn('Sass check failed for ' + failCount + ' files.');
      } else {
        grunt.log.ok('All ' + chalk.cyan(filesToCheck.length) + ' files passed.');
      }
  
      cb();
    });
  };
  
new_contents: 'use strict';
  var path = require('path');
  var dargs = require('dargs');
  var async = require('async');
  var chalk = require('chalk');
  var spawn = require('cross-spawn');
  var grunt = require('grunt');
  
  module.exports = function (files, options, cb) {
    var failCount = 0;
  
    var filesToCheck = files.filter(function (src) {
      return path.basename(src)[0] !== '_' && grunt.file.exists(src);
    });
  
    async.eachLimit(filesToCheck, options.concurrencyCount, function (src, next) {
      var bin;
      var args;
  
      var passedArgs = dargs(options, {
        includes: ['loadPath'],
        ignoreFalse: true
      });
  
      if (options.bundleExec) {
        bin = 'bundle';
        args = ['exec', 'sass', '--check', src];
      } else {
        bin = 'sass';
        args = ['--check', src];
      }
  
      args = args.concat(passedArgs);
  
      grunt.verbose.writeln('Command: ' + bin + ' ' + args.join(' '));
  
      grunt.verbose.writeln('Checking file ' + chalk.cyan(src) + ' syntax.');
      spawn(bin, args, {stdio: 'inherit'})
        .on('error', grunt.warn)
        .on('close', function (code) {
          if (code > 0) {
            failCount++;
            grunt.log.error('Checking file ' + chalk.cyan(src) + ' - ' + chalk.red('failed') + '.');
          } else {
            grunt.verbose.ok('Checking file ' + chalk.cyan(src) + ' - ' + chalk.green('passed') + '.');
          }
  
          next();
        });
    }, function () {
      if (failCount > 0) {
        grunt.warn('Sass check failed for ' + failCount + ' files.');
      } else {
        grunt.log.ok('All ' + chalk.cyan(filesToCheck.length) + ' files passed.');
      }
  
      cb();
    });
  };
  
subject: allow specifying loadPath in syntax checking