Defines starting with `d' in bsd/isofs/cd9660

• DEFAULTCREATOR bsd/isofs/cd9660/iso.h:84
• DEFAULTTYPE bsd/isofs/cd9660/iso.h:83
• directoryBit bsd/isofs/cd9660/iso.h:192
• doff_t bsd/isofs/cd9660/cd9660_node.h:77