Refs #6476.  Don't do drd/helgrind on open_injection_6476
Refs #6476.  Don't do drd/helgrind on open_injection_6476

percona/Percona-TokuBackup,kbauskar/Percona-TokuBackup,dbpercona/Percona-TokuBackup,Jun-Yuan/Percona-TokuBackup,dbpercona/Percona-TokuBackup,percona/Percona-TokuBackup,tplavcic/Percona-TokuBackup,dbpercona/Percona-TokuBackup,kbauskar/Percona-TokuBackup,dbpercona/Percona-TokuBackup,tplavcic/Percona-TokuBackup,guiquanz/Percona-TokuBackup,Jun-Yuan/Percona-TokuBackup,tplavcic/Percona-TokuBackup,kbauskar/Percona-TokuBackup,percona/Percona-TokuBackup,kbauskar/Percona-TokuBackup,percona/Percona-TokuBackup,tplavcic/Percona-TokuBackup,guiquanz/Percona-TokuBackup,guiquanz/Percona-TokuBackup,Jun-Yuan/Percona-TokuBackup,guiquanz/Percona-TokuBackup,Jun-Yuan/Percona-TokuBackup