ARC in LOCAL submission mode without emies - arex still expects ws-interface.log
Running with LOCAL mode only (no emies submission) no [arex] block should be needed. However, even if no [arex/ws] block is included arex looks for the default ws-interface.log file, and when none is specified it looks for it in the default location /var/log/arc/ws-interface.log
This prevents arex from starting up in LOCAL mode running as non-root, as user has no permission to create the file in /var/log/arc.
Expected result: When no [arex] block exists in arc.conf no ws-interface.log should be expected.