UndefinedMode    1389 magick/option.c     { "Undefined", UndefinedMode, UndefinedOptionFlag, MagickTrue },
UndefinedMode    1393 magick/option.c     { (char *) NULL, UndefinedMode, UndefinedOptionFlag, MagickFalse }
UndefinedMode    1226 wand/montage.c             mode=UndefinedMode;
UndefinedMode    1252 wand/montage.c             if (mode == UndefinedMode)