Filter::HereDocIndent
    Version 0.90 August 6, 2002

      Initial release

    Version 0.91 November 8, 2010

      Modified to fit the situation where the heredoc is an argument in a
      call to a function.

      Minor edits to documentation.

    Version 1.00 July, 2012

      Added NWS option.

      Minor edits to documentation.

    Version 1.01 January 2, 2015

      Fixed CR/LF and encoding issues with the files. Improved tests so
      that they have test names.