status: make unresolved files always be in the morestatus structured output
We don't know the status of those files, only that they're unresolved, so
we don't output the status for those - any code parsing this will have to be
tolerant to that.
Differential Revision: https://phab.mercurial-scm.org/D7668
#require docutils gettext
$ $TESTDIR/check-gendoc zh_TW
checking for parse errors