D6505: dagop: fix documentation of reachableroots

[pulkit (Pulkit Goyal)]

pulkit added inline comments.

INLINE COMMENTS

> dagop.py:265
> -
> -    If includepath is True, return (<roots>::<heads>)."""
>      if not roots:

if this doc about `includepath` was correct, let's keep it.

REPOSITORY
  rHG Mercurial

REVISION DETAIL
  https://phab.mercurial-scm.org/D6505

To: valentin.gatienbaron, #hg-reviewers
Cc: pulkit, mercurial-devel