Boris Feld <boris.feld@octobus.net> [Wed, 31 Jan 2018 11:10:55 +0100] rev 37168
bundlespec: add support for some variants
This way the stream v2 bundle spec can disable the changegroup part while
enabling the stream v2 part.
Differential Revision: https://phab.mercurial-scm.org/D1955