New upstream release 1.5.9
    https://fedorahosted.org/sssd/wiki/Releases/Notes-1.5.9
    Support for overriding home directory, shell and primary GID locally
    Properly honor TTL values from SRV record lookups
    Support non-POSIX groups in nested group chains (for RFC2307bis LDAP
    servers)
    Properly escape IPv6 addresses in the failover code
    Do not crash if inotify fails (e.g. resource exhaustion)
    Don't add multiple TGT renewal callbacks (too many log messages)