baresip: use return in init script

"start_service()" is a function, hence "return" should be used instead
of "exit".

Signed-off-by: Sebastian Kemper <sebastian_ml@gmx.net>

net/baresip/files/baresip.init

@@ -21,7 +21,7 @@ start_service() {
   if [ "$ENABLE_BARESIP" != yes ]; then
     $LOGGER User configuration incomplete - not starting $DAEMON
     $LOGGER Check ENABLE_BARESIP in $DEFAULT
-    exit 1
+    return 1
   fi
 
   procd_open_instance