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Add App.InvalidFlagAccessHandler
Follow up from #1434
I couldn't test it myself, but I like this PR.
@julian7 I don't like the name. It sounds like it will get called when someone passes an unknown flag, ex mycli --unknown-flag
@julian7 I don't like the name. It sounds like it will get called when someone passes an unknown flag, ex
mycli --unknown-flag
Hmm, reasonable. What about UndefinedFlagHandler?
@julian7 I don't like the name. It sounds like it will get called when someone passes an unknown flag, ex
mycli --unknown-flag
Hmm, reasonable. What about UndefinedFlagHandler?
That name has the same problem.
@icholy lets leave it as it is. Thanks