code: function concatenateAndWriteFile(files, destination, separator) {
  			if (!destination || !files || !files.length) return;
  
  			files = _.map(files, process);
  
  			var src = files.join(separator || grunt.util.linefeed);
  			grunt.file.write(destination, src);
  			grunt.log.writeln('File ' + destination.cyan + ' created.');
  		}
docs: Concatenates and writes a file
  
  @param {Array} files File contents
  @param {String} destination File destination
  @param {String} separator Files joined on this string