D6728: config: add experimental argument to the config registrar

[pulkit (Pulkit Goyal)]

pulkit added inline comments.

INLINE COMMENTS

> perf.py:244
>          default=mercurial.configitems.dynamicdefault,
> +        experimental=True,
>      )

This breaks `contrib/perf.py` with older versions of mercurial. Can you send a compatibility fix as followup?

REPOSITORY
  rHG Mercurial

CHANGES SINCE LAST ACTION
  https://phab.mercurial-scm.org/D6728/new/

REVISION DETAIL
  https://phab.mercurial-scm.org/D6728

To: navaneeth.suresh, #hg-reviewers
Cc: pulkit, mercurial-devel