modernize debian init.d script to eliminate warnings

Change-Id: I06a01c82a3f7547d939e5d41de4535f91a423f90

debian/ngcp-rtpengine-daemon.init

@@ -16,22 +16,17 @@ NAME=ngcp-rtpengine-daemon
 DESC="RTP/media proxy"
 TABLE=0
 
-case $(dirname $0) in
+DAEMON=$(which rtpengine)
-	/*) FULLPATH=$(dirname $0);;
-	*)  FULLPATH=$(pwd)/$(dirname $0);;
-esac
-
-DAEMON=`which rtpengine`
 DEFAULTS=/etc/default/${NAME}
 
-test -f $DAEMON || exit 0
+test -f "$DAEMON" || exit 0
 
 # Load startup options if available
-if [ -f $DEFAULTS ]; then
+if [ -f "$DEFAULTS" ]; then
-	. $DEFAULTS || true
+	. "$DEFAULTS" || true
 fi
 
-if [ "$RUN_RTPENGINE" != "yes" -a "$RUN_MEDIAPROXY" != "yes" ]; then
+if [ "$RUN_RTPENGINE" != "yes" ]; then
 	echo "rtpengine not yet configured. Edit $DEFAULTS first."
 	exit 0
 fi
@@ -137,7 +132,7 @@ case "$1" in
 	      ;;
 	  esac
 	fi
-	echo -n "Starting $DESC: $NAME"
+	log_daemon_msg "Starting $DESC: $NAME"
 	if [ "$TABLE" -ge 0 ] && [ "$VIRT" != "yes" ]; then
 		set +e
 		modprobe xt_RTPENGINE
@@ -175,14 +170,14 @@ case "$1" in
 		fi
 		set -e
 	fi
-	start-stop-daemon --start --quiet --pidfile $PIDFILE \
+	start-stop-daemon --start --quiet --pidfile "$PIDFILE" \
-		--exec $DAEMON -- $OPTIONS || echo -n " already running"
+		--exec "$DAEMON" -- $OPTIONS || log_progress_msg " already running"
 	log_end_msg $?
 	;;
   stop)
-	echo -n "Stopping $DESC: $NAME"
+	log_daemon_msg "Stopping $DESC: $NAME"
 	start-stop-daemon --oknodo --stop --quiet --pidfile $PIDFILE \
-		--exec $DAEMON
+		--exec "$DAEMON"
 	if [ "$?" -ne 0 ]; then
 		return $?
 	fi
@@ -214,9 +209,9 @@ case "$1" in
 	;;
   restart|force-reload)
 
-	echo -n "Restarting $DESC: $NAME"
+	log_daemon_msg "Restarting $DESC: $NAME"
 	start-stop-daemon --oknodo --stop --quiet --pidfile \
-		$PIDFILE --exec $DAEMON
+		"$PIDFILE" --exec $DAEMON
 	if [ "$?" -ne 0 ]; then
 		return $?
 	fi
@@ -226,10 +221,10 @@ case "$1" in
 	  status=$?
 	  case "${status}" in
 	    0|3)
-	      echo "Active node or transition."
+	      log_progress_msg "Active node or transition."
 	      ;;
 	    *)
-	      echo "Ignored start action in inactive node ($status)"
+	      log_progress_msg "Ignored start action in inactive node ($status)"
 	      exit 0
 	      ;;
 	  esac
@@ -273,7 +268,7 @@ case "$1" in
 		set -e
 	fi
 	start-stop-daemon --start --quiet --pidfile \
-		$PIDFILE --exec $DAEMON  -- $OPTIONS
+		"$PIDFILE" --exec "$DAEMON"  -- $OPTIONS
 	log_end_msg $?
 	;;
   status)