D1884: strip: use %d for known-int string interpolation

[durin42 (Augie Fackler)]

durin42 added inline comments.

INLINE COMMENTS

> yuja wrote in strip.py:218
> No. I mean it should use revset.formatspec. i.e. `revs(expr, arg)` instead of `revs(expr % arg)`.

Oh good catch, I'll insert another change to fix that in isolation.

REPOSITORY
  rHG Mercurial

REVISION DETAIL
  https://phab.mercurial-scm.org/D1884

To: durin42, #hg-reviewers, pulkit
Cc: yuja, pulkit, mercurial-devel