scmutil: drop unreachable except clause
socket.error is a subclass of IOError, which we catch higher up. It
seems to have been this way since
020a896a5292 (dispatch: sort
exception handlers, 2009-01-12), so let's celebrate the 10 year
anniversary (a few days late) of it being wrong by deleting it.
Differential Revision: https://phab.mercurial-scm.org/D5626
tests: suppress "Checked out 1 paths of <hash>" from modern git
test-convert-git.t is failiing since git commit
0f086e6dca (checkout:
print something when checking out paths, 2018-11-13). Suppress the new
output by disambiguating the arguments with a "--" separator.
Differential Revision: https://phab.mercurial-scm.org/D5625
revlog: document that mmap resources are released implicitly by GC
It's okay-ish, but currently the open fd and the mapping itself are leaked
until the indexdata is deallocated. If revlog had close(), the underlying
resources should be closed there as well, but AFAIK there's no such hook
point.