strip: move attributes shortcut assigned earlier This series will add support for "soft" stripping using the archived phase in addition to the usual heavy weight revlog stripping. First, we need to refactor the strip function to extract logic common to the "soft-strip" case. We are about to extract bits of the strip function into separate functions. Those blocks of code contain variables for frequently accessed attributes. We move those variables outside of the soon to be moved blocks.

log: fix line wrap on diffstat with -G/--graph (issue5800) Differential Revision: https://phab.mercurial-scm.org/D5485

registrar: minor cleanup to the merge function Pointed out by Yuya.

vfs: raise NotImplementedError in abstractvfs._auditvfs This make sure that auditing is implemented.