D724: templater: extract shortest() logic from template function

[quark (Jun Wu)]

quark accepted this revision.
quark added a comment.


  It might make sense to be a revlog method if we don't really care about the "cleanness" of revlog class. I slightly prefer that.

REPOSITORY
  rHG Mercurial

REVISION DETAIL
  https://phab.mercurial-scm.org/D724

To: martinvonz, #hg-reviewers, quark
Cc: quark, mercurial-devel