py3: replace str() with it's bytes equivalent in hgext/shelve.py
Internally we are dealing with bytes everywhere, so anything returning a unicode
results in an error or some change in behaviour.
Differential Revision: https://phab.mercurial-scm.org/D2520
{
"conduit_uri": "https://phab.mercurial-scm.org/api",
"repository.callsign": "HG",
"arc.land.onto.default": "@",
"base": "hg:.^"
}