Prevent invalid conventions border-zero #926
Merged
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It was highlighted in a recent comment that any convention could be supplied to the border-zero rule and no validity checking would occur leading to misleading messages such as to use the convention 'zero'.
While the docs do specify the conventions it's probably a good belts and braces measure to check ourselves and default to a good choice if it seems invalid.
This PR addresses this. An extra warning will be thrown in each file a border-zero issue occurs to inform the user of the invalid content in their config file.
<DCO 1.1 Signed-off-by: Dan Purdy dan@danpurdy.co.uk>