[Bug 261446] freebsd-update should not create boot environment when it's not making changes to the boot environment

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=261446

--- Comment #9 from commit-hook@FreeBSD.org ---
A commit in branch releng/12.3 references this bug:

URL:
https://cgit.FreeBSD.org/src/commit/?id=f0df8a13116dca6ac42334d23430160fbeaf6c09

commit f0df8a13116dca6ac42334d23430160fbeaf6c09
Author:     Kyle Evans <kevans@FreeBSD.org>
AuthorDate: 2022-02-12 21:36:24 +0000
Commit:     Mark Johnston <markj@FreeBSD.org>
CommitDate: 2022-03-15 17:46:50 +0000

    freebsd-update: improve BE creation feature

    This addresses one nit and one bug in the BE creation feature of
    freebsd-update:

    The nit addressed is that it currently only names the BEs after the
    userland version, but the kernel version may be higher.  After this
    change, we request both and pass them through sort(1) to choose the
    highest.  This is especially helpful if a freebsd-update patch touched
    one but not the other.

    The bug fixed is that roots updated that are not located at '/', e.g.,
    by using -b or -j, will no longer create boot environments
    automatically.  There's a very low chance these will actually change the
    BE in any meaningful way, anyways.  It could make sense in the future
    to allow an argument-override to create the BE anyways if someone comes
    up with a non-standard setup, e.g., where a jail is an important part of
    their boot environment on an appliance or some such setup.

    Half of this patch is submitted by delphij@, the other half kevans@.

    PR:             261446

    (cherry picked from commit e01e8f911b935eabcc35b4d121951e4e21042ee5)
    (cherry picked from commit 35d33d408213d20c63d60c0dfcdf77b2b36f5eee)

    Approved by:    so
    Security:       FreeBSD-EN-22:09.freebsd-update

 usr.sbin/freebsd-update/freebsd-update.sh | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

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