git: initrd: Add diff/sdiff back to rescue and fix build

[Aaron LI]

commit 8958ea92bf5d1c8be83222ba6d1d977b01c2d368
Author: Aaron LI <aly at aaronly.me>
Date:   Sat Dec 21 21:14:14 2024 +0800

    initrd: Add diff/sdiff back to rescue and fix build
    
    Update the rescue/Makefile to include the updated diff/sdiff utilities;
    however, diff3 is excluded because it's a shell script and relies on
    libexec/diff3prog.  As a result, we must remove /rescue/diff3 via
    "make upgrade"; otherwise, /rescue/diff3 would become a separate binary
    (because of hardlinks) and break initrd build because of exceeded size.
    
    Bug: https://bugs.dragonflybsd.org/issues/3376

Summary of changes:
 Makefile_upgrade.inc   |  1 +
 initrd/rescue/Makefile | 12 +++---------
 2 files changed, 4 insertions(+), 9 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/8958ea92bf5d1c8be83222ba6d1d977b01c2d368


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