Martin von Zweigbergk <martinvonz@google.com> [Sun, 02 Dec 2018 13:44:49 -0800] rev 40780
match: make "groupsize" include the trailing "|"
I think this is a little easier to follow and it will simplify later
patches too.
Differential Revision: https://phab.mercurial-scm.org/D5350