Fix log parsing

[hagenmt]

by injecting extra double quotes here it break json logging and causes errors like this in fluentd:

pattern not matched message="{\"timestamp\":\"2023-10-28T14:01:56.949Z\",\"logger\":\"com.wavefront.agent.listeners.AbstractPortUnificationHandler\",\"region\":\"region-x\",\"hostname\":\"xxx-xxxx-xxxx\",\"service\":\"vmc-wavefront-proxy\",\"app_id\":\"vmc-wavefront-proxy\",\"commit\":\"\",\"build\":\"0.1.0-20231004-252-5ca6a9a\",\"level\":\"WARN\",\"thread\":\"epollEventLoopGroup-17-7\",\"marker\":\"\",\"exception\":\"\",\"message\":\"Received line is too long, consider increasing pushListenerMaxReceivedLength; remote: x.x.x.x [30000]; reason: \"frame length (18463928) exceeds the allowed maximum (1048576)\"\",\"mdc\":\"{}\",\"component\":\"\",\"sub_component\":\"\",\"sddc_id\":\"\",\"org_id\":\"\",\"op_id\":\"\"}"

and from the CLI the log looks like this with extra double quotes:

2023-10-28 12:02:37,176 WARN  [AbstractPortUnificationHandler:logWarning] Received line is too long, consider increasing pushListenerMaxReceivedLength; remote: x.x.x.x [30000]; reason: "frame length (18468978) exceeds the allowed maximum (1048576)"

[hagenmt]

pls review: @laullon @joannak-vmware