[COMMITTED] Fix strnlen doc re array size

[Paul Eggert]

On 6/26/24 11:52, Vincent Lefevre wrote:
> This disagrees with the strnlen(3) man page from Linux man-pages 6.8,
> which requires s to be a string, i.e. null-terminated (though the
> null byte may be beyond the first maxlen bytes).
> 
> However, it seems that POSIX does not have such a requirement.
> 
> So, what's the actual status?

The actual status is that the Linux man page is wrong, and needs to be 
fixed. The glibc code is supposed to conform to POSIX, and to the 
recently-updated manual which is merely POSIX reworded. (I assume the 
glibc code does conform but I have not checked this.)

If you read the thread I cited, this topic came up because Android got 
it wrong a while back (fixed in Android 5.1).