kea DHCP incorrect parse of multiple entries in sytem config.

[geoffb]

kea fails to start.

I think I found a bug when switching to the kea DHCP implementation. It reads the various name servers and so forth in the Services-> DHCP Server->LAN setting, I had 2 ntp servers listed and kea would fail with a syntax error, inspecting the kea-dhcp4.conf file, it had improperly parsed and concatenated the 2 ntp sever entries as like this in the conf file:

{
"name": "ntp-servers",
"data": "172.16.20.150, pool.ntp.org" < note the missing close quote on first entry and missing opening quote on the second.
}

I manually changed it to this and all is fine, just FYI.

{
"name": "ntp-servers",
"data": "17x.16.20.150", "pool.ntp.org"
}