largefile: consider `updatelfiles` as a `parentchange`
This is not strictly a `parentchange`, however this is still some internal
dirstate adjustment as "similar" enough that it seems find to do so.
Differential Revision: https://phab.mercurial-scm.org/D11107
== New Features ==
* `hg config` now has a `--source` option to show where each
configuration value comes from.
== Default Format Change ==
These changes affects newly created repositories (or new clone) done with
Mercurial 5.8.
== New Experimental Features ==
== Bug Fixes ==
== Backwards Compatibility Changes ==
== Internal API Changes ==