Incorrect unlints

The meta part of the program should not contain +unlint point on non-existent lint, as it is useless

Incorrect:

+unlint abracadabra

Because lint with name “abracadabra” does not exist(perhaps at some point this lint will be added and this example will become correct :) )

Correct:

+unlint ascii-only

Because lint with name “ascii-only” exist