World file format changes for MegaZeux 2.93. #452

Job	Run time
unix-portable	57s
unix-misc	2m 20s
AArch64-Switch	55s
ARM-3DS	41s
ARM-NDS	31s
MSYS2-MINGW32	4m 36s
MSYS2-MINGW64	4m 33s
PowerPC-Wii	47s
AddressSanitizer	1m 9s
MemorySanitizer	1m 8s
PowerPC-WiiU	48s
UndefinedBehaviorSanitizer	42s
unix	48s
unix-static	1m 31s
	21m 26s

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