Comment 4 for bug 987132

This appears to be the same bug as: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=658739 so the fault is actually in gnutls for using libgcrypt (which I believe was the same library that caused libnss-ldap to stop working for ldaps:// in the last release, forcing people to use libnss-ldapd instead)