Set MALLOC_CHECK_ and MALLOC_PERTURB_ to catch memory problems
MALLOC_CHECK_ set to 3 should abort if a memory problem is found.
MALLOC_PERTURB_ should catch any usage of freed memory.
Signed-off-by: Rob Crittenden <rcritten@redhat.com>
Reviewed-by: Nathan Kinder <nkinder@redhat.com>