log.dat: Fixes Bug#12922 - adjusts regex to catch hostname for hostname or FQDN
- Most of the packages being searched for in the system logs section only put hostname into
the logs. However HAProxy puts the FQDN. Reviewing RFC 5424 shows that this is following
the requirements. The preferred order fromn the RFC is
1. FQDN
2. Static IP address
3. hostname
4. Dynamic IP address
5. the NILVALUE
- Most of the programs are using option 3 but option 1 is valid for HAProxy
- The regex change filters out the hostname from the FQDN if an extra 'dot' is present
Fixes: Bug#12922 Suggested-by: Michael <ip.fire@die-fritzens.de> Tested-by: Michael <ip.fire@die-fritzens.de> Signed-off-by: Adolf Belka <adolf.belka@ipfire.org>