osmo-nitb: be strict about cmdline args

Abort upon unknown options and missing option arguments. This came to my
attention while rewiring the -m and -M options: passing -M without argument
would launch nitb with wrong configuration. So, rather exit immediately.

If there are legacy options that should be ignored, they deserve an own 'case:'
in the option switch. There are none that I'm aware of though.
1 file changed
tree: 2707bb10289e5d149ad8f63b2560887feb9b8a1a
  1. debian/
  2. openbsc/
  3. .gitignore