ifplugd: add missing newline

package/ifplugd/ifplugd.mk

@@ -28,4 +28,4 @@ $(IFPLUGD_HOOK_POST_INSTALL): $(IFPLUGD_TARGET_INSTALL_TARGET)
 		$(TARGET_DIR)/etc/init.d/S45ifplugd
 	# don't use bash for init script
 	$(SED) 's^/bin/bash^/bin/sh^g' $(TARGET_DIR)/etc/init.d/S45ifplugd
-	touch $@
+	touch $@