Maintenance Ruby 3.3 gets fixes, but no new features. Switch to Ruby 4.0 →
instance method
OptionParser::ParseError#reason
reason
lib/optparse.rb
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# File tmp/rubies/ruby-3.3.0/lib/optparse.rb, line 2168
def reason
@reason || self.class::Reason
end
Returns error reason. Override this for I18N.