Boris Feld <boris.feld@octobus.net> [Wed, 19 Dec 2018 15:42:20 +0100] rev 41028
tests: update printenv.py argument parsing
We are about to introduce a new flag for printing the HG environment variables
one per line and it's easier to do when using the argparse module for argument
parsing.
Differential Revision: https://phab.mercurial-scm.org/D5452