[PATCH 1 of 2] contrib: don't hardcode path to bash interpreter

[David Soria Parra]

Olle Lundberg <olle.lundberg at gmail.com> writes:

> # HG changeset patch
> # User Olle Lundberg <geek at nerd.sh>
> # Date 1395785272 -3600
> #      Tue Mar 25 23:07:52 2014 +0100
> # Node ID 5c9e0e96192c55a6cd4e468b0f72f8f4d339c82e
> # Parent  9a09a625bc93ab69248613abcbea041b785f1a0e
> contrib: don't hardcode path to bash interpreter
>

this looks good to me, but if we go the route of using
/usr/bin/env we should do that everywhere in mercurial,
including editmerge and tests/bundles.