Pierre-Yves David <pierre-yves.david@octobus.net> [Mon, 03 May 2021 12:21:35 +0200] rev 47158
revlog: split the option initialisation in its own method
The part of the code is huge, keeping it separated will keep the `_loadindex`
method simpler and help keeping logic well insulated.
Differential Revision: https://phab.mercurial-scm.org/D10570