The binary contents of the PNAMES lump starts with a header of 4 bytes, followed by all of the patch names.
|0x00||4||nummappatches||An integer holding a the number of following patches.|
|0x04||8 * nummappatches||name_p||Eight-character ASCII strings defining the lump names of the patches. Only the characters A-Z (uppercase), 0-9, and  - _ should be used in lump names. When a string is less than 8 bytes long, it should be null-padded to the eighth byte.|
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