[Bug 272260] bectl(8) usage: -?

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=272260

Dag-Erling Smørgrav <des@FreeBSD.org> changed:

           What    |Removed                     |Added
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                 CC|                            |des@FreeBSD.org

--- Comment #11 from Dag-Erling Smørgrav <des@FreeBSD.org> ---
Because `getopt(3)` returns `?` when it encounters an error, and the usual way
to handle said error is to print a usage message and exit, `-?` can usually be
relied upon to produce a usage message even if the author of the utility did
not think to provide a `-h` option for that purpose.  Some people have
improperly internalized this as “`-?` is the standard way to request a usage
message”, which is not the case.  The author of `bectl(8)` appears to be one of
those people, and hardcoded a check for `-?` in `bectl(8)`'s non-standard
command line parser.  My recommendation is to rewrite `bectl(8)` to use
`getopt(3)` and remove all mention of `-?` from the usage string and manual
page.

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