GNU nano 2.9.8 "Espresso" brings the ability to filter the
buffer (or the marked region) through an external command
(^R^X and prefix the command with the pipe symbol, "|"), is
better at detecting and maintaining paragraphs, is able to
justify //-style comments, fixes a crash when the binding
of a key to a string lacks a closing quote, gives feedback
about the number of lines written also when prepending or
appending, and fixes a couple of bugs with the linter.

This commit was edited with nano 2.9.8