D2847: remotenames: work around move of ABCs in collections

[yuja (Yuya Nishihara)]

yuja added a comment.


  Could be either `import collections.abc` or adding `collections.abc` to
  `list_stdlib_modules`.

REPOSITORY
  rHG Mercurial

REVISION DETAIL
  https://phab.mercurial-scm.org/D2847

To: durin42, #hg-reviewers
Cc: yuja, mercurial-devel