git: Sync cmp(1) with FreeBSD. Mainly for 80445b7a3f738e0b which fixes a bug.

[Sascha Wildner]

commit bbe5188b0361378334b2f91ca0b4f783828d0a76
Author: Sascha Wildner <saw at online.de>
Date:   Fri Jan 15 09:53:26 2021 +0100

    Sync cmp(1) with FreeBSD. Mainly for 80445b7a3f738e0b which fixes a bug.
    
    Reported-by: William Ahern <william at 25thandclement.com>

Summary of changes:
 usr.bin/cmp/cmp.1     | 51 ++++++++++++++++++++++++++++++++++++++++----
 usr.bin/cmp/cmp.c     | 58 ++++++++++++++++++++++++++++++++-------------------
 usr.bin/cmp/extern.h  |  6 +++++-
 usr.bin/cmp/link.c    |  3 +++
 usr.bin/cmp/misc.c    |  4 +++-
 usr.bin/cmp/regular.c | 19 +++++++++--------
 usr.bin/cmp/special.c |  6 ++++--
 7 files changed, 108 insertions(+), 39 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/bbe5188b0361378334b2f91ca0b4f783828d0a76


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