py3: use '%d' for integers rather than '%s'
obsolete._readmarkers() returns an integer version number.
Differential Revision: https://phab.mercurial-scm.org/D1537
py3: remove test-terse-status.t from python3 whitelist as it was renamed
The renamed file exists in the whitelist.
Differential Revision: https://phab.mercurial-scm.org/D1540