completion: install completers to conventional locations
Installs the bash and zsh completers to the convential locations so they will
automatically be picked up without user intervention. The zsh completer
on Debian is still installed to vendor-completions to match their policy.
bash: https://github.com/scop/bash-completion#faq
zsh: https://github.com/zsh-users/zsh/blob/
57305cf245853b8b30895b41a90142dffab97e38/INSTALL#L254
Debian zsh: https://salsa.debian.org/debian/zsh/-/blob/
5086b5356abcef8849dc8a09902b7c55f01db3c0/debian/README.Debian#L73
#require docutils gettext
Error: the current ro localization has some rst defects exposed by
moving pager to core. These two warnings about references are expected
until the localization is corrected.
$ $TESTDIR/check-gendoc ro
checking for parse errors
gendoc.txt:58: (WARNING/2) Inline interpreted text or phrase reference start-string without end-string.
gendoc.txt:58: (WARNING/2) Inline interpreted text or phrase reference start-string without end-string.