[PATCH] exchange: switch to usual way of testing for bundle2-ness

[Yuya Nishihara]

On Fri, 16 Jun 2017 22:58:04 -0700, Martin von Zweigbergk via Mercurial-devel wrote:
> # HG changeset patch
> # User Martin von Zweigbergk <martinvonz at google.com>
> # Date 1497679051 25200
> #      Fri Jun 16 22:57:31 2017 -0700
> # Node ID 0296f9489a0510d258ac9ec8ea0841e0a7c4c25c
> # Parent  9d472b219fb07e011c7a6255c5be47e6fc66229c
> exchange: switch to usual way of testing for bundle2-ness

Sure, queued. Thanks.