[Bug 270867] xargs -E is not working properly

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=270867

--- Comment #6 from commit-hook@FreeBSD.org ---
A commit in branch stable/13 references this bug:

URL:
https://cgit.FreeBSD.org/src/commit/?id=bc47005a648b1b326cfd852c039a9b01854c5796

commit bc47005a648b1b326cfd852c039a9b01854c5796
Author:     Tom Jones <thj@FreeBSD.org>
AuthorDate: 2022-07-05 15:03:51 +0000
Commit:     Dag-Erling Smørgrav <des@FreeBSD.org>
CommitDate: 2023-06-14 12:48:55 +0000

    xargs: terminate if line replacement cannot be constructed

    If the line with replacement cannot be constructed xargs should
    terminate as documented in the man page

    We encounter this error, but gnu/xargs doesn't because they have a much
    larger limit for created outputs (~10000 lines).

    Reviewed by:    oshogbo
    Sponsored by:   Klara, Inc.
    Differential Revision:  https://reviews.freebsd.org/D35574

    (cherry picked from commit f058359ba5e08c555d7e6f192217f890b83cd46c)

    xargs: fix description of strnsubst return value

    Reported by:    oshogbo
    Sponsored by:   Klara, Inc.
    Differential Revision:  https://reviews.freebsd.org/D35574

    (cherry picked from commit 1e692b938e37a9b43a43ace2739eb6b97379cac0)

    xargs: improve foundeof check for -E

    4aeb63826e0f got it almost correct (we can't use strcmp() here as
    current argument isn't guaranteed to be NUL-terminated), but we also
    need to check that current argument length is equal to that of eofstr.

    PR:             270867
    Reviewed by:    bapt
    Differential Revision:  https://reviews.freebsd.org/D39583

    (cherry picked from commit 21ef48af5c0f4ed85a5f42855b5a8d58b5431103)

    xargs: Fix typo in error message.

    MFC after:      1 week
    Sponsored by:   Klara, Inc.

    (cherry picked from commit 6d777389e19d3bebde515e88e8405de45d8af7bd)

    xargs: Consistently use strtonum() to parse arguments.

    MFC after:      1 week
    Sponsored by:   Klara, Inc.
    Reviewed by:    kevans
    Differential Revision:  https://reviews.freebsd.org/D40425

    (cherry picked from commit fbc445addf9183d180bb8b488281617bb19d9242)

 usr.bin/xargs/strnsubst.c | 15 ++++++++++-----
 usr.bin/xargs/xargs.c     | 44 +++++++++++++++++++++++++-------------------
 2 files changed, 35 insertions(+), 24 deletions(-)

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