[ale] Vi editor paragraph formatting command

[bluejay at speedfactory.net (Jim Seymour)]

Hi All,

Debian uses vi as the editor for the mutt email client. Every now and
then I end up editing an email and throwing off the line wrap. Line wrap
is set to 72 characters. What command would I use to whip the email back
into shape. Google and Linux for Dummies Quick Reference didn't uncover
what I am looking for.

TIA,

Jim Seymour