Return success when reusing a vacated entry.  Bug 417641. r=wtc
Return success when reusing a vacated entry.  Bug 417641. r=wtc

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