D271: obsolete: use bytes() instead of str() so the node is bytes on py3

[durin42 (Augie Fackler)]

durin42 marked an inline comment as done.
durin42 added inline comments.

INLINE COMMENTS

> yuja wrote in obsolete.py:587
> Why can't this be just `bytes(prec)` ?
> 
> I don't think `str(prec).encode('ascii')` is valid for binary node id.

I swear that didn't work before. But it does work, so yay!

REPOSITORY
  rHG Mercurial

REVISION DETAIL
  https://phab.mercurial-scm.org/D271

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