path: introduce a `get_unique_pull_path_obj` function
Unlike the previous one, `get_unique_pull_path`, this function return the `path`
object, opening more option for the caller.
note that this highlight we don't actually need the `repo` argument to
`get_pull_paths`, however changing the API would be annoying for third party
extensions.
#require docutils gettext
$ $TESTDIR/check-gendoc de
checking for parse errors
Die Dateien werden dem Projektarchiv beim n\xc3\xa4chsten \xc3\x9cbernehmen (commit) hinzugef\xc3\xbcgt. Um dies vorher r\xc3\xbcckg\xc3\xa4ngig zu machen, siehe:hg:`forget`. (esc)
warning: please have a space before :hg: