[tex-live] laulatex quiting: fix your writable cache path

[Karl Berry]

    >> --- source/texk/web2c/luatexdir/image/writejpg.w	(revision 4639)
    >> +++ source/texk/web2c/luatexdir/image/writejpg.w	(working copy)
    ...
    >> +#include "ptexlib.h"
    >> #include <assert.h>
    >> -#include "ptexlib.h"

i386-linux luatex no longer crashes on the given file with that patch.
Yay :).

k