[Midnightbsd-cvs] [MidnightBSD/src] 874d84: fix segfault

[Lucas Holt]

  Branch: refs/heads/master
  Home:   https://github.com/MidnightBSD/src
  Commit: 874d84f0868404bb7c340094202aa4fdf8d424a7
      https://github.com/MidnightBSD/src/commit/874d84f0868404bb7c340094202aa4fdf8d424a7
  Author: Lucas Holt <luke at foolishgames.com>
  Date:   2020-11-22 (Sun, 22 Nov 2020)

  Changed paths:
    M usr.bin/diff/diff.1
    M usr.bin/diff/diff.c
    M usr.bin/diff/tests/diff_test.sh

  Log Message:
  -----------
  fix segfault