Just for completeness I tested xwdtopnm of netpbm (2:10.0-15ubuntu2) in Ubuntu 14.04.5 LTS and I confirm that it suffers from this bug, too.
Just for completeness I tested xwdtopnm of netpbm (2:10.0-15ubuntu2) in Ubuntu 14.04.5 LTS and I confirm that it suffers from this bug, too.