Merge branch 'es/retire-efgrep'

Prepare for GNU [ef]grep that throw warning of their uses. * es/retire-efgrep: check-non-portable-shell: detect obsolescent egrep/fgrep

Junio C Hamano committed Oct 7, 2022 at 17:19 UTC 1f1f375cfe5540c685433485bdd76552549839be

No changes.