py3: don’t subscript socket.error
On Python 2, socket.error was subscriptable. On Python 3, socket.error is an
alias to OSError and is not subscriptable. The except block passes the
exception to self.send_error(). This fails on both Python 2 (if it was
executed) and Python 3, as it expects a string.
Getting the attribute .strerror works on Python 2 and Python 3, and has the
same effect as the previous code on Python 2.
{
"conduit_uri": "https://phab.mercurial-scm.org/api",
"phabricator.uri": "https://phab.mercurial-scm.org/",
"repository.callsign": "HG",
"arc.land.onto.default": "@",
"base": "hg:.^"
}