[Bug 241441] inconsistency between allowed empty regex for `awk -F` and split()

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=241441

--- Comment #5 from commit-hook@FreeBSD.org ---
A commit in branch stable/12 references this bug:

URL:
https://cgit.FreeBSD.org/src/commit/?id=ab1dedd4946098fe7202e825d299a2cbec81dae0

commit ab1dedd4946098fe7202e825d299a2cbec81dae0
Author:     Warner Losh <imp@FreeBSD.org>
AuthorDate: 2021-07-20 04:47:30 +0000
Commit:     Warner Losh <imp@FreeBSD.org>
CommitDate: 2021-07-31 00:02:51 +0000

    awk: Make -F '' and -v FS="" behave the same

    IEEE Std 1003.1-2008 mandates that -F str be treated the same as -v
    FS=str. For a null string, this was not the case. Since awk(1) documents
    that a null string for FS has a specific behavior, make -F '' behave
    consistently with -v FS="".

    PR:                     241441
    Upstream issue:         https://github.com/onetrueawk/awk/issues/127
    Upstream pull request:  https://github.com/onetrueawk/awk/pull/128
    MFC After:              2 weeks
    Sponsored by:           Netflix

    (cherry picked from commit a2e3e1187309f9404940b61ca49a93bd0536559d)

 contrib/one-true-awk/main.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

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