ONOS-470: Allow ONOS service to be run with customized username

Change-Id: I643b61842577f68c33bee6383638647615528da4
diff --git a/tools/package/debian/onos.conf b/tools/package/debian/onos.conf
index 9891bd1..85c210d 100644
--- a/tools/package/debian/onos.conf
+++ b/tools/package/debian/onos.conf
@@ -21,7 +21,7 @@
 
 script
   [ -f /opt/onos/options ] && . /opt/onos/options
-  start-stop-daemon --signal INT --start --chuid sdn \
+  start-stop-daemon --signal INT --start --chuid $ONOS_USER \
     --exec /opt/onos/bin/onos-service -- $ONOS_OPTS \
         >/opt/onos/var/stdout.log 2>/opt/onos/var/stderr.log
 end script