Snippets for grep 3.12 from FreeBSD 150arm64

Sourced from https://pkg-status.freebsd.org/ampere5/data/latest-per-pkg/gnugrep/3.12/150arm64-default.log.

• dfasearch.c:152:43: warning: operator '?:' has lower precedence than '|'; '|' will be evaluated first [-Wbitwise-conditional-parentheses]
    152 |   pat.fastmap = syntax_only | match_icase ? nullptr : ximalloc (uchar_max + 1);
        |                 ~~~~~~~~~~~~~~~~~~~~~~~~~ ^