5de7c4507d
Changes: - Accept setting an empty flags-type value in the settings tab if the variable specification permits it - Don't accept substrings of flag values E.g. with values: 'one,two,three', 'hree', 'w', etc. used to be accepted. Not any more - Don't accept flags with random pattern-matching special characters E.g. with values: 'one,two,three', 'on.', '(o)[n]e*' etc. used to be accepted. Not any more.