def changelog_names
      CHANGELOG_NAMES.flat_map do |name|
        [name, name.upcase, name.capitalize]
      end.uniq
    end
def changelog_names
      CHANGELOG_NAMES.flat_map do |name|
        [name, name.upcase, name.capitalize]
      end.uniq
    end
List possible names for a changelog
 since humans may have many many ways to call it.

 @return [Array] list of possible names