[Bug 478931] object leak in pkix_List_MergeLists function. r=nelson
[Bug 478931] object leak in pkix_List_MergeLists function. r=nelson

ekr/nss-old,ekr/nss-old,ekr/nss-old,nmav/nss,nmav/nss,nmav/nss,nmav/nss,ekr/nss-old,ekr/nss-old,ekr/nss-old,nmav/nss,ekr/nss-old,nmav/nss,nmav/nss