Hello :-)

Thank you so much for recently adding =#+DATE= support for ox-man!

Attached is a small patch adding two options to =#+MAN_CLASS_OPTIONS= to
customize the footer-middle and header-middle arguments of the .TH macro.

Adding support for the footer-middle is convenient since it often
indicates the release version.
Although header-middle is probably not used very often, adding it was
just a step away - note that Emacs itself overwrites the title of
section 1 to GNU!

Tests are mostly here for non regression purposes.
They should also pass on main; except for the two added specifically,
namely =ox-man/title-date-section-release= and
=ox-man/title-date-section-release-header=.

Best,
Grégoire

Note: =title= seems to never be ='nil=. The line separator was missing
in the fallback condition but export seems to yield a clean .TH line in
every configuration.