Unicode has fixed the typo.

I see some potential changes to df in GH #1906, let's start adding tests.

Use exit, not return to exit the script.

I'm curious to know what happened in c5dee76368499b08f04ad55176170217a499541e. Is it something specific that I should be testing?

Use the right package name.

Fix the package name (locales). There is no package named ${LOCALEDIR}/${f}.

In D53917#1232930, @bapt wrote:

you should probably also add this manually to the non unicode "frozen" locales

Sorry, I opted for a simpler fix.

Very nice! Thank you!

Address style(9) suggestions:

In D53865#1230620, @crest_freebsd_rlwinm.de wrote:

Using tabs, spaces or newlines in interface names is just asking for trouble. A lot of the rc.d shell code is not properly written to deal with such intentional stupidity.

Include the same pattern in jib_destroy(), jng_shutdown(), and jng_stats().

Address suggestions:

Thank you!
If there are no further suggestions, I'll commit over the weekend.

Address suggestions from both Phabricator and Bugzilla.