PK11_VerifyRecover leaks a slot reference, this fixes it. r=relyea
PK11_VerifyRecover leaks a slot reference, this fixes it.
r=relyea

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