[358] Add irodsAgent to rsyslog config example

Author: korydraughn

docs/system_overview/troubleshooting.md

@@ -20,6 +20,7 @@ The key points to remember about the following configuration are:
 - The log file, **/var/log/irods/irods.log**, will be readable by anyone with access to the OS
 - All messages generated by any process whose name starts with **irodsServer** will be written to the log file
 - All messages generated by any process whose name starts with **irodsDelayServer** will be written to the log file
+- All messages generated by any process whose name starts with **irodsAgent** will be written to the log file
 
 ```text
 # file: /etc/rsyslog.d/00-irods.conf
@@ -32,6 +33,8 @@ $template irods_format,"%msg%\n"
 & stop
 :programname,startswith,"irodsDelayServer" /var/log/irods/irods.log;irods_format
 & stop
+:programname,startswith,"irodsAgent" /var/log/irods/irods.log;irods_format
+& stop
 ```
 
 ### logrotate configuration