git: mk/sys.mk: Explain a bit more about ${WORLD_ALTCOMPILER}

[Aaron LI]

commit 6cec0642948fbadd02cf922a0a5c057403a4eb5e
Author: Aaron LI <aly at aaronly.me>
Date:   Wed Sep 24 13:32:58 2025 +0800

    mk/sys.mk: Explain a bit more about ${WORLD_ALTCOMPILER}
    
    It was introduced in commit 8d7da4247e43eb2bbe924d08f6a40ef80d742515 for
    supporting multiple alternative compilers.

Summary of changes:
 share/mk/sys.mk | 3 +++
 1 file changed, 3 insertions(+)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/6cec0642948fbadd02cf922a0a5c057403a4eb5e


-- 
DragonFly BSD source repository