ipatests: add test for group creation with GID and nonposix option
Add test to ensure group creation fails when passing the --nonposix
option and a GID number at the same time. Failure shows a message
to warn the user that this is not allowed.
Signed-off-by: Antonio Torres <antorres@redhat.com>
Reviewed-By: Rob Crittenden <rcritten@redhat.com>