Re: pnm loader fixes and tests

[Havoc Pennington <hp redhat com>]

"Matthias Clasen" <matthiasc poet de> writes: 
> Yes, these random tests are pretty good. 
> 
> TEST_RANDOM ('P', 150, FALSE);
> 
> allowed me to catch one more buffer overrun in the pnm loader.
> 

Ideally, each time we found a random image that broke things, we could
save it for regression testing... I meant to add that feature to the
test app but never got around to it.

Havoc