Many (less easily automatically converted) old-style strings
remain.
Where there was any possible ambiguity about the exact version or
variant intended, nothing was changed. IANAL, nor a search robot.
Use `with stdenv.lib` wherever it makes sense.
nss-pam-ldapd is a fork of nss_ldap that uses a daemon (nslcd) to
connect to the LDAP server, instead of going directly from PAM/NSS.
This improves performance and separation, and increases security
if you connect to LDAP with a password, since only the nscd daemon
needs to know the password, not every user of PAM/NSS.
This commit will be followed by a commit to NixOS which enables the
use of the nslcd daemon.
