files: don't recurse into subrepos without a path or -S (issue5127)
The 'm.always()' check was needed for when a path to 'sub1' is given, and 'sub1'
contains a subrepo itself. But that also caused the automatic recursion when no
path was given. Instead, force -S when printing a subrepo if the subpath is an
exact match (which will unconditionally recurse once in the nested subrepo).
.. Common link and substitution definitions.
.. |hg(1)| replace:: **hg**\ (1)
.. _hg(1): hg.1.html
.. |hgrc(5)| replace:: **hgrc**\ (5)
.. _hgrc(5): hgrc.5.html
.. |hgignore(5)| replace:: **hgignore**\ (5)
.. _hgignore(5): hgignore.5.html