float: fix buffer overrun
float: fix buffer overrun

Fix a buffer overrun; generally causing hexadecimal constants to be
incorrectly rejected.

letolabs/nasm,turingstudio/nasm,Distrotech/nasm,techkey/nasm,projedi/nasm,projedi/nasm,techkey/nasm,techkey/nasm,letolabs/nasm,Distrotech/nasm,turingstudio/nasm,turingstudio/nasm,Distrotech/nasm,projedi/nasm,techkey/nasm,projedi/nasm,projedi/nasm,turingstudio/nasm,Distrotech/nasm,techkey/nasm,letolabs/nasm