Bug#755945: dpkg --compare-versions called with missing argument

[Ryan Tandy]

Package: liblemonldap-ng-conf-perl
Version: 1.2.5-1
Severity: minor

On initial installation, the config script is called without a second
argument. The call to dpkg --compare-versions needs a guard around it,
like the corresponding call in postinst already has.

Minor severity, the script does still work.

Thanks for maintaining LL::NG in Debian!

cheers,
Ryan