git: gpt(8): Tweak all commands to print usage with the '-h' option

[Aaron LI]

commit ef2e905a25a6f194aa627d23812958928ad5699b
Author: Aaron LI <aly at aaronly.me>
Date:   Fri Aug 29 13:38:50 2025 +0800

    gpt(8): Tweak all commands to print usage with the '-h' option
    
    Instead of an ugly error:
    ```
    $ gpt recover -h
    gpt recover: illegal option -- h
    usage: gpt recover device ...
    ```
    
    It now looks better:
    ```
    $ gpt recover -h
    usage: gpt recover device ...
    ```

Summary of changes:
 sbin/gpt/add.c     |  3 ++-
 sbin/gpt/boot.c    |  3 ++-
 sbin/gpt/create.c  |  6 ++++--
 sbin/gpt/destroy.c |  3 ++-
 sbin/gpt/expand.c  | 22 ++++++++++++++++++----
 sbin/gpt/gpt.c     |  3 ++-
 sbin/gpt/label.c   |  3 ++-
 sbin/gpt/migrate.c |  3 ++-
 sbin/gpt/recover.c |  3 ++-
 sbin/gpt/remove.c  |  3 ++-
 sbin/gpt/show.c    |  3 ++-
 11 files changed, 40 insertions(+), 15 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/ef2e905a25a6f194aa627d23812958928ad5699b


-- 
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