doc/nasmdoc.src: Fix octal number prefix misprint
doc/nasmdoc.src: Fix octal number prefix misprint

Reported-by: Anthony <6e1a438cfe5a6c9e2165665f8c2258849ccc43f0@cloudnet.com>
Signed-off-by: Cyrill Gorcunov <7a1ea01eee6961eb1e372e3508c2670446d086f4@gmail.com>

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