gnu: gnupg: Update to 2.1.20.

* gnu/packages/gnupg.scm (gnupg): Update to 2.1.20.
[source]: Remove patch.
* gnu/packages/patches/gnupg-2.1-fix-Y2038-test-failure.patch: Delete file.
* gnu/local.mk (dist_patch_DATA): Remove it.

gnu/local.mk

@@ -613,7 +613,6 @@ dist_patch_DATA =						\
   %D%/packages/patches/gmp-faulty-test.patch			\
   %D%/packages/patches/gnome-tweak-tool-search-paths.patch	\
   %D%/packages/patches/gnucash-price-quotes-perl.patch		\
-  %D%/packages/patches/gnupg-2.1-fix-Y2038-test-failure.patch	\
   %D%/packages/patches/gobject-introspection-absolute-shlib-path.patch \
   %D%/packages/patches/gobject-introspection-cc.patch		\
   %D%/packages/patches/gobject-introspection-girepository.patch	\

gnu/packages/gnupg.scm

@@ -217,15 +217,14 @@ (define-public npth
 (define-public gnupg
   (package
     (name "gnupg")
-    (version "2.1.19")
+    (version "2.1.20")
     (source (origin
               (method url-fetch)
               (uri (string-append "mirror://gnupg/gnupg/gnupg-" version
                                   ".tar.bz2"))
-              (patches (search-patches "gnupg-2.1-fix-Y2038-test-failure.patch"))
               (sha256
                (base32
-                "1w4vccmb5l50lm4yrz9vkdj7whbfvzx543r55362kkj1aqgyvk26"))))
+                "03cnd6gz8f4lf69inskssw57idrswcdimhccdyglmrlv6rlrmkr4"))))
     (build-system gnu-build-system)
     (native-inputs
      `(("pkg-config" ,pkg-config)))

gnu/packages/patches/gnupg-2.1-fix-Y2038-test-failure.patch

-Fix a Y2038 test failure on systems where time_t is a signed 32-bit value:
-
-https://bugs.gnupg.org/gnupg/issue2988
-
-Patch copied from upstream source repository:
-
-https://git.gnupg.org/cgi-bin/gitweb.cgi?p=gnupg.git;a=commit;h=de3838372ae3cdecbd83eea2c53c8e2656d93052
-
-From de3838372ae3cdecbd83eea2c53c8e2656d93052 Mon Sep 17 00:00:00 2001
-From: Justus Winter <justus@g10code.com>
-Date: Tue, 7 Mar 2017 12:18:59 +0100
-Subject: [PATCH] tests: Avoid overflowing signed 32 bit time_t.
-
-* tests/openpgp/quick-key-manipulation.scm: Use expiration times in
-the year 2038 instead of 2105 to avoid overflowing 32 bit time_t.
-time_t is used internally to parse the expiraton time from the iso
-timestamp.
-
-GnuPG-bug-id: 2988
-Signed-off-by: Justus Winter <justus@g10code.com>
----
- tests/openpgp/quick-key-manipulation.scm | 15 +++++++++++----
- 1 file changed, 11 insertions(+), 4 deletions(-)
-
-diff --git a/tests/openpgp/quick-key-manipulation.scm b/tests/openpgp/quick-key-manipulation.scm
-index 10f0bfe21..08ef62613 100755
---- a/tests/openpgp/quick-key-manipulation.scm
-+++ b/tests/openpgp/quick-key-manipulation.scm
-@@ -125,8 +125,13 @@
-    (default default never)
-    (rsa "sign auth encr" "seconds=600") ;; GPGME uses this
-    (rsa "auth,encr" "2") ;; "without a letter, days is assumed"
--   (rsa "sign" "2105-01-01") ;; "last year GnuPG can represent is 2105"
--   (rsa "sign" "21050101T115500") ;; "last year GnuPG can represent is 2105"
-+   ;; Sadly, the timestamp is truncated by the use of time_t on
-+   ;; systems where time_t is a signed 32 bit value.
-+   (rsa "sign" "2038-01-01")      ;; unix millennium
-+   (rsa "sign" "20380101T115500") ;; unix millennium
-+   ;; Once fixed, we can use later timestamps:
-+   ;; (rsa "sign" "2105-01-01")      ;; "last year GnuPG can represent is 2105"
-+   ;; (rsa "sign" "21050101T115500") ;; "last year GnuPG can represent is 2105"
-    (rsa sign "2d")
-    (rsa1024 sign "2w")
-    (rsa2048 encr "2m")
-@@ -157,7 +162,8 @@
-   (lambda (subkey)
-     (assert (= 1 (:alg subkey)))
-     (assert (string-contains? (:cap subkey) "s"))
--    (assert (time-matches? 4260207600 ;; 2105-01-01
-+    (assert (time-matches? 2145916800    ;; 2038-01-01
-+			   ;; 4260207600 ;; 2105-01-01
- 			   (string->number (:expire subkey))
- 			   ;; This is off by 12h, but I guess it just
- 			   ;; choses the middle of the day.
-@@ -165,7 +171,8 @@
-   (lambda (subkey)
-     (assert (= 1 (:alg subkey)))
-     (assert (string-contains? (:cap subkey) "s"))
--    (assert (time-matches? 4260254100 ;; UTC 2105-01-01 11:55:00
-+    (assert (time-matches? 2145959700    ;; UTC 2038-01-01 11:55:00
-+			   ;; 4260254100 ;; UTC 2105-01-01 11:55:00
- 			   (string->number (:expire subkey))
- 			   (minutes->seconds 5))))
-   (lambda (subkey)
--- 
-2.12.0
-