Commit 52cb2edd authored by Ell's avatar Ell

Issue #4605 - Invalid abr brush crashes GIMP

When loading ABR brushes, error out on negative scan-line lengths,
instead of trying to allocate a huge buffer.  This entire code
could use a whole lot more unsignedness, but this should cover the
parent 782e209a
Pipeline #151110 passed with stages
in 30 minutes and 43 seconds