valgrind: scan logs for bad results
valgrind: scan logs for bad results

It's not sophisticated but it will warn you about a node
if at least one node has issues.

Signed-off-by: Greg Farnum <0bcb4295d38ee745130ea5f2bb88ef4eef474e61@dreamhost.com>

t-miyamae/teuthology,SUSE/teuthology,dreamhost/teuthology,SUSE/teuthology,ivotron/teuthology,zhouyuan/teuthology,ceph/teuthology,tchaikov/teuthology,zhouyuan/teuthology,dmick/teuthology,dmick/teuthology,t-miyamae/teuthology,tchaikov/teuthology,yghannam/teuthology,dmick/teuthology,ivotron/teuthology,SUSE/teuthology,ktdreyer/teuthology,ceph/teuthology,caibo2014/teuthology,robbat2/teuthology,yghannam/teuthology,michaelsevilla/teuthology,dreamhost/teuthology,michaelsevilla/teuthology,robbat2/teuthology,caibo2014/teuthology,ktdreyer/teuthology