Skipped lines warning not populating when using windows_event_log_monitor with json output

[pc-drender]

The prepended warning about skipped lines

scalyr-agent-2/scalyr_agent/scalyr_logging.py

Line 968 in fc4a174

".... Warning, skipped writing %ld log lines due to limit set by `%s` option...\n%s"

does not populate when using the windows_event_log_monitor with "json": true nor is there a warning in the standard agent.log

As well, the options needed to correct the issue are not documented outside of windows_event_log_monitor_test.py

"monitor_log_write_rate": -1,
"monitor_log_max_write_burst": -1

[weilliu]

The Windows event monitor uses a different code path, so the warning message for skipped log lines is missing. I will keep this issue open, but the Scalyr agent is currently in maintenance mode. Therefore, this is unlikely an enhancement we will add to the agent