fix server startup

[tsgit]

clarify phoebus alarm server startup.

ensure that logging configuration is properly handled

insert a noop into the if branch instead a nonsensical extraneous command. note that -xml_file is not a recognized argument and never was.

[tsgit]

the -import option is shown here

# java -jar /opt/phoebus/service-alarm-server.jar -help
 _______  _        _______  _______  _______    _______  _______  _______           _______  _______
(  ___  )( \      (  ___  )(  ____ )(       )  (  ____ \(  ____ \(  ____ )|\     /|(  ____ \(  ____ )
| (   ) || (      | (   ) || (    )|| () () |  | (    \/| (    \/| (    )|| )   ( || (    \/| (    )|
| (___) || |      | (___) || (____)|| || || |  | (_____ | (__    | (____)|| |   | || (__    | (____)|
|  ___  || |      |  ___  ||     __)| |(_)| |  (_____  )|  __)   |     __)( (   ) )|  __)   |     __)
| (   ) || |      | (   ) || (\ (   | |   | |        ) || (      | (\ (    \ \_/ / | (      | (\ (   
| )   ( || (____/\| )   ( || ) \ \__| )   ( |  /\____) || (____/\| ) \ \__  \   /  | (____/\| ) \ \__
|/     \|(_______/|/     \||/   \__/|/     \|  \_______)(_______/|/   \__/   \_/   (_______/|/   \__/        

Command-line arguments:

-help                                   - This text
-server             localhost:9092      - Kafka server with port number
-config             Accelerator         - Alarm configuration
-settings           settings.{xml,ini}  - Import preferences (PV connectivity) from property format file
-noshell                                - Disable the command shell for running without a terminal
-export             config.xml          - Export alarm configuration to file
-import             config.xml          - Import alarm configruation from file
-logging            logging.properties  - Load log settings
-connect_secs       10                  - Time alarm server and config import/export waits for connection
-stable_secs         4                  - Time alarm server and config import/export waits for stable configuration
-kafka_properties   client.properties   - Load kafka client settings from file

clearly there is no -xml_file argument