outobj: limit excessive length warning to 64 characters
outobj: limit excessive length warning to 64 characters

The case where we warn for excessive length should presumably have
been %.nnns which means limit length to nnn characters, rather than
%nnns which means left-pad with spaces to nnn bytes if possible. Also
change the limit from 128 to 64, to make it more likely to not line
break.

Cc: Cyrill Gorcunov <7a1ea01eee6961eb1e372e3508c2670446d086f4@gmail.com>
Signed-off-by: H. Peter Anvin (Intel) <8a453bad9912ffe59bc0f0b8abe03df9be19379e@zytor.com>

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