 
     else if @outputFile
       if @inputFiles.length > 1
-        @error "autoprefixer: For several files you can specify only output " +
-               "dir (by `-d DIR`),\nnot one output file"
+        @error """autoprefixer: For several files you can specify only output \
+                    dir (by `-d DIR`),
+                  not one output file"""
         return
 
       [file, @outputFile] for file in @inputFiles

  # Options description
  desc: -> '''
    Files:
      If you didn't set input files, autoprefixer will +
        read from stdin stream.

      By default, prefixed CSS will rewrite original files.

      if updater.changed.length == 0
        @print 'Everything up-to-date'
      else
        @print "Update #{ updater.changed.join(' and ') } data"
      done()

    updater.run()
