Do not override DAEMON_ARGS through /etc/default files

After adding support we faced broken configuration for openstack
services (see related bug). OS services' init.d files "sources"
/etc/defaults/{service_name} files which could override DAEMON_ARGS.

Change-Id: I1c2a76fbfa39759195e006745d0be7256ea108b1
Related-bug: PROD-17968
1 file changed