obsolete: make the message clearer in the case of NEVER,!NOP
obsolete: make the message clearer in the case of NEVER,!NOP

"instruction never implemented and removed from the target CPU"

... doesn't really make sense, so change it to ...

"instruction never implemented and invalid on the target CPU"

(still may seen redundant, but it is to distingush it from "and is a
noop on...")

Signed-off-by: H. Peter Anvin (Intel) <8a453bad9912ffe59bc0f0b8abe03df9be19379e@zytor.com>

techkey/nasm,techkey/nasm,techkey/nasm,techkey/nasm,techkey/nasm