tests/test-gendoc-pt_BR.t

localrepo: abort creating a shared repo if the source does not have store

We cannot create a shared repository without a store IIUC. Let's abort in such
cases.

Differential Revision: https://phab.mercurial-scm.org/D8772

#require docutils gettext

  $ $TESTDIR/check-gendoc pt_BR
  checking for parse errors