ates that the process had to be terminated early due to errors in the input parameters. This can happen for example if a parameter is misspelled or given an invalid value. The calling program should check for this flag because if it is set the destination stream will be empty or incomplete and should be ignored. Error messages in the <b>stderr</b> stream will indicate the cause of any problem.</p>

<p>An exit value of 2 indicates that perltidy ran to completion but there are warning messages in the <b>stder