Comment 1 for bug 1417234

Whilst learning about using Travis on our Github repos I read that the MacOs Filesystem is case insensitive - that being the case I bet we have a test for if the filename given by the user ends in ".xml" and then putting that on if it is NOT detected AND the test we use IS CASE SENSITIVE and is not detecting that the given name ending in ".XML" is still a valid one.

I will go and check for the test used - and have a hunt for anything else that might be affected by this...!