The catchlines of the several sections, divisions, or ordinances or sections thereof, of this Code printed in boldface type are intended as mere catchwords to indicate the contents of the section and shall not be deemed or taken to be the titles of such sections, divisions, or ordinances or sections thereof, nor as any part of the section, nor shall they be so deemed when any of such sections, divisions, or ordinances or sections thereof, including the catchlines, are amended or reenacted, unless expressly so provided.
('70 Code, § 1-3)