tests/test-check-shbang.t

shelve: move unshelve-finishing logic to a separate function

Finishing unshelve involves two steps now:
- stripping a changelog
- aborting a transaction
Obs-based shelve will not require these things, so isolating this logic
into a separate function where the normal/obs-shelve branching is
going to be implemented seems to be like a nice idea.

Behavior-wise this change moves 'unshelvecleanup' from being between
changelog stripping and transaction abortion to being after them.
I don't think this has any negative effects.

#require test-repo

  $ . "$TESTDIR/helpers-testrepo.sh"
  $ cd "`dirname "$TESTDIR"`"

look for python scripts that do not use /usr/bin/env

  $ hg files 'set:grep(r"^#!.*?python") and not grep(r"^#!/usr/bi{1}n/env python")'
  [1]

look for shell scripts that do not use /bin/sh

  $ hg files 'set:grep(r"^#!.*/bi{1}n/sh") and not grep(r"^#!/bi{1}n/sh")'
  [1]