[luatex] Odd Lua issue with ^^@

[Joseph Wright]

On 29/03/2017 09:36, Akira Kakuto wrote:
>> ....\T1/cmr/m/n/10 ^@
>> ....\kern -5.13763 (for accent)
> 
> Previously we were using static int read_line() by Taco.
> Now we are using one in lua 5.2.4, where there is a line:
> l = strlen(p);
> Probably this seems to be a reason of the difference.
> 
> Best,
> Akira

All understood (David C. has tracked down an 'interesting' discussion of
the handling of ^^@ when reading files in pure Lua).

As I said in reply to Luigi, I'll adjust the script concerned to allow
for this change.

Joseph