Export the AltSubjectEncode function so our test programs can build certs with multiple email addresses.
Export the AltSubjectEncode function so our test programs can build certs
with multiple email addresses.

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