progress: use %d to format ints instead of %s
Due to behavioral changes between '% Ns' and '% Nd' this has some
unfortunate extra dancing. I'm not sure of a better way to solve this
problem.
Differential Revision: https://phab.mercurial-scm.org/D2226
{
"conduit_uri": "https://phab.mercurial-scm.org/api",
"repository.callsign": "HG",
"arc.land.onto.default": "@",
"base": "hg:.^"
}