It looks like some scripts are getting installed under `/usr/share/doc`, and some of these scripts are compressed (bz2). # equery files neomutt | grep -e '\.sh' -e '.py' /usr/share/doc/neomutt-20211029-r1/hcache-bench/neomutt-hcache-bench.sh.bz2 /usr/share/doc/neomutt-20211029-r1/keybase/decrypt.sh /usr/share/doc/neomutt-20211029-r1/keybase/install.sh.bz2 /usr/share/doc/neomutt-20211029-r1/keybase/keybase.py.bz2 /usr/share/doc/neomutt-20211029-r1/keybase/pgpdecrypt.sh /usr/share/doc/neomutt-20211029-r1/keybase/pgpverify.sh /usr/share/doc/neomutt-20211029-r1/keybase/verify.sh /usr/share/doc/neomutt-20211029-r1/oauth2/mutt_oauth2.py.README.bz2 /usr/share/doc/neomutt-20211029-r1/oauth2/mutt_oauth2.py.bz2 /usr/share/doc/neomutt-20211029-r1/samples/markdown2html.py.bz2 I suspect the upstream build system may be at fault here, but I'm not certain on that. I am pretty certain that current state here is not wanted/expected, so I'm reporting here.
I reported the bug upstream as well: https://github.com/neomutt/neomutt/issues/3444 I do not have a fix to propose, but hopefully this helps.