[SSSD] [PATCH] DB: Don't add empty ranges

[Ondrej Kos]

Hi,

Attached patch adresses issue https://fedorahosted.org/sssd/ticket/1816

I thought about ignoring these right after fetching from ldap, but the 
solution to just ignore the range while updating sysdb seems more 
appropriate, than going through whole range list.

Ondra
-- 
Ondrej Kos
Associate Software Engineer
Identity Management - SSSD
Red Hat Czech