[Freeciv-Dev] (PR#13023) more error messages for scripts

["Jason Short" <jdorje@xxxxxxxxxxxxxxxxxxxxx>]

<URL: http://bugs.freeciv.org/Ticket/Display.html?id=13023 >

Now I get a message like:

[string "..."]:55: `=' expected near `size'

which is slightly useful but doesn't really tell where the error is.
Line 55 is the error but in a scenario script this isn't very helpful
since it doesn't correspond to file line numbers at all.

Is it possible to output the line of lua code itself in this case?  I
think that would be sufficient to track down all script errors.

-jason