Text::Tabs performs the same job that the unix expand(1) and unexpand(1)
commands do: adding or removing tabs from a document.

Text::Wrap::wrap() will reformat lines into paragraphs.  All it does is
break up long lines, it will not join short lines together.

Text::Fill::fill() will reformat blocks of text into paragraphs.  It
uses Text::Wrap::wrap() to do the work

Homepage:
https://metacpan.org/release/MUIR/Text-Tabs+Wrap-2013.0523
