cmta and cmtc commands should report an error when an undefined option is passed in

[eloots]

It appears that when an undefined option is passed to cmtc or cmta, the command is silently ignored and no error is reported.

For example, let's use the cmtc set-current-course command.

On the happy path:

$ cmtc set-current-course -h
Usage: cmtc set-current-course [options]
Sets the current course to point to a directory

Help options:
  --usage            Print usage and exit
  -h, -help, --help  Print help message and exit

Other options:
  -s, --directory file

$ cmtc set-current-course --directory ~/tmp/stu/lunatech-scala-2-to-scala3-course
Current course set to '/Users/ericloots/tmp/stu/lunatech-scala-2-to-scala3-course'

$ cmtc set-current-course -s ~/tmp/stu/lunatech-scala-2-to-scala3-course
Current course set to '/Users/ericloots/tmp/stu/lunatech-scala-2-to-scala3-course'

$

Now, when mistyping the option (long or short):

$ cmtc set-current-course --directorys ~/tmp/stu/lunatech-scala-2-to-scala3-course


$ cmtc set-current-course -d ~/tmp/stu/lunatech-scala-2-to-scala3-course


$