add logging to SASL interaction function
add logging to SASL interaction function

git-svn-id: 2380535542b9d902a9e28d524e07971ff43b9bb1@1154 ef36b2f9-881f-0410-afb5-c4e39611909c

arthurdejong/nss-pam-ldapd,arthurdejong/nss-pam-ldapd,arthurdejong/nss-pam-ldapd