D6746: perf: don't pass experimental argument in config for older Mercurial versions

[pulkit (Pulkit Goyal)]

pulkit added inline comments.

INLINE COMMENTS

> perf.py:270
>      pass
> +except TypeError:
> +    configitem(b'perf', b'presleep',

Can you add the commit hash and hg version (5.2 in this case) as comment due to which the compatibility is need?

REPOSITORY
  rHG Mercurial

CHANGES SINCE LAST ACTION
  https://phab.mercurial-scm.org/D6746/new/

REVISION DETAIL
  https://phab.mercurial-scm.org/D6746

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