git: sys: Use NULL instead of 0 for issignal()

[Aaron LI]

commit 4da7670ba2d4c90860b52dcea5a9cefe678842b4
Author: Aaron LI <aly at aaronly.me>
Date:   Mon Mar 31 23:16:47 2025 +0800

    sys: Use NULL instead of 0 for issignal()

Summary of changes:
 sys/kern/kern_sig.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/4da7670ba2d4c90860b52dcea5a9cefe678842b4


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