Flags loader error doesn't include the whole error

[Confidenceman02]

Some exceptions from loading the flags module may have more than 1 error message. for example sometimes the flags file that it's trying to load doesn't exist and it returns an exception with multiple args. Djelm just grabs the first one which can mean we get a number back, which is not helpful at all.

e.g.

 -- FLAG MODULE ERROR ----------------------------------------------------------------------------------------------------- command/generatemodel

    I was trying to generate a model from this flags module:

        /home/<REDACTED>/code/django-elm/example/elm_programs/flags/modelChoiceField.py

    But got the following error type:

        2

    Make sure you fix the errors in /home/<REDACTED>/code/django-elm/example/elm_programs/flags/modelChoiceField.py.