use-of-uninitialized-value in WritePDBImage

use-of-uninitialized-value in WritePDBImage: a task in MiMo-V2.6-RL-harbor-cyber: MiMo-V2.6-RL Cyber (Harbor) (Harbor dataset). MemorySanitizer: use-of-uninitialized-value in function WritePDBImage in file graphicsmagick/coders/pdb.c