Recent pylint complains about raising a general Exception

[billsacks]

In trying to update to the latest version of pylint (#4856 ), in addition to the issues mentioned in #4857 , I got one other error:

************* Module CIME.XML.tests
CIME/XML/tests.py:56:12: W0719: Raising too general exception: Exception (broad-exception-raised)

We should either raise a more specific exception or bypass this check here. @jasonb5 it looks like you added this. Do you have any insight into whether it would make sense to raise a more specific exception here?

[bartgol]

What about just using CIMEError?

[jasonb5]

@billsacks As @bartgol we should have used CIMEError, this was an oversight by me. We should be using more specific errors. I plan on broadening our exceptions as we move to formalize the API.