gnupg: security bump to version 1.4.23

Fixes CVE-2018-12020: Unsanitized file names might cause injection of
terminal control characters into the status output of gnupg.

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
(cherry picked from commit 0647268416ecf5c50741838fae4fc48b1c0750be)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/gnupg/gnupg.hash

@@ -1,3 +1,3 @@
 # Locally computed based on signature
-# https://gnupg.org/ftp/gcrypt/gnupg/gnupg-1.4.22.tar.bz2.sig
-sha256	9594a24bec63a21568424242e3f198b9d9828dea5ff0c335e47b06f835f930b4	gnupg-1.4.22.tar.bz2
+# https://gnupg.org/ftp/gcrypt/gnupg/gnupg-1.4.23.tar.bz2.sig
+sha256	c9462f17e651b6507848c08c430c791287cd75491f8b5a8b50c6ed46b12678ba	gnupg-1.4.23.tar.bz2

package/gnupg/gnupg.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-GNUPG_VERSION = 1.4.22
+GNUPG_VERSION = 1.4.23
 GNUPG_SOURCE = gnupg-$(GNUPG_VERSION).tar.bz2
 GNUPG_SITE = https://gnupg.org/ftp/gcrypt/gnupg
 GNUPG_LICENSE = GPL-3.0+