startup-notification: add license information

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/startup-notification/startup-notification.mk

@@ -12,5 +12,7 @@ STARTUP_NOTIFICATION_CONF_ENV = lf_cv_sane_realloc=yes
 STARTUP_NOTIFICATION_CONF_OPT = --with-x \
 	--x-includes="$(STAGING_DIR)/usr/include/X11" \
 	--x-libraries="$(STAGING_DIR)/usr/lib"
+STARTUP_NOTIFICATION_LICENSE = LGPLv2
+STARTUP_NOTIFICATION_LICENSE_FILES = COPYING
 
 $(eval $(autotools-package))