[PATCH 0/3] nd/diff-parseopt fixups

["Nguyễn Thái Ngọc Duy" <pclouds@gmail.com>]

Let me see if I could just fix up this series on top like this.
Failing this, I'll break it down and resend in small chunks.

This redoes a85e5a0108 (parse-options: allow keep-unknown +
stop-at-non-opt combination - 2019-01-17), deletes dead functions and
rewrites b9b760ed1c (diff.c: convert -B|--break-rewrites - 2019-01-17) a
bit.

Nguyễn Thái Ngọc Duy (3):
  Revert "parse-options: allow keep-unknown + stop-at-non-opt
    combination"
  diff.c: delete unused functions
  diff.c: simplify diff_opt_break_rewrites()

 diff.c          | 74 ++-----------------------------------------------
 parse-options.c |  4 +++
 2 files changed, 6 insertions(+), 72 deletions(-)

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2.20.1.560.g70ca8b83ee