Docker v23.0 and up allow the daemon to be configured to have seccomp disabled
by default (using the "unconfined" profile as default), and introduced a new
"builtin" profile-name for the default (see [moby@f8795ed364586acd][1] and
[mnoby@ac449d6b5ad29a50][2]).
However, the CLI had no special handling for the "builtin" profile, which
resulted in it trying to load it as a file, which would fail;
docker run -it --rm --security-opt seccomp=builtin busybox
docker: opening seccomp profile (builtin) failed: open builtin: no such file or directory.
See 'docker run --help'.
This patch adds a special case for the "builtin" profile, to allow using the
default profile on daemons with seccomp disabled (unconfined) by default.
[1]: f8795ed364
[2]: ac449d6b5a
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
6d0aa0a52d