gob2: bump to version 2.0.20

Signed-off-by: Jerzy Grzegorek <jerzy.grzegorek@trzebnica.net>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/gob2/gob2.mk

@@ -4,7 +4,8 @@
 #
 ################################################################################
 
-GOB2_VERSION = 2.0.19
+GOB2_VERSION = 2.0.20
+GOB2_SOURCE = gob2-$(GOB2_VERSION).tar.xz
 GOB2_SITE = http://ftp.5z.com/pub/gob
 GOB2_DEPENDENCIES = libglib2 flex bison host-pkgconf host-flex
 HOST_GOB2_DEPENDENCIES = host-bison host-flex host-libglib2