Martin von Zweigbergk <martinvonz@google.com> [Fri, 15 Apr 2022 17:06:10 -0700] rev 49092
rust-revlog: change default version from 2 to 1 in test builder
Version 1 is the only version we support, so it seems like the natural
choice for making it easy to create valid revlogs.
Differential Revision: https://phab.mercurial-scm.org/D12563