 
     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.

      Separate browsers by comma. For example, `-b "> 1%, opera 12"'.
      You can set browsers by global usage statictics: `-b \"> 1%\"'.
      or last version: `-b "last 2 versions"'.
    '''

  # Print to stdout
  print: (str) ->
