[Updated] D12419: util: restore the util.pickle symbol

[mharbison72 (Matt Harbison)]

mharbison72 added inline comments.

INLINE COMMENTS

> util.py:28
>  import os
> +import pickle  # provides util.pickle symbol
>  import re as remod

Alternately, we can skip the next patch and just restore `pickle = pycompat.pickle`.  But since there were check-code rules pointing toward `util.pickle`, I initially thought to cleanup pycompat a bit.  That is at odds with the end of the series, which keeps several unused imports in pycompat.

REPOSITORY
  rHG Mercurial

CHANGES SINCE LAST ACTION
  https://phab.mercurial-scm.org/D12419/new/

REVISION DETAIL
  https://phab.mercurial-scm.org/D12419

To: mharbison72, #hg-reviewers
Cc: mercurial-patches
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