gnu: unzip: Add patches from Fedora [security fixes].

Non-exhaustively fixes CVE-2016-9844, CVE-2018-1000035, CVE-2018-18384, and
CVE-2019-13232.

* gnu/packages/patches/unzip-COVSCAN-fix-unterminated-string.patch,
gnu/packages/patches/unzip-CVE-2016-9844.patch,
gnu/packages/patches/unzip-CVE-2018-1000035.patch,
gnu/packages/patches/unzip-CVE-2018-18384.patch,
gnu/packages/patches/unzip-case-insensitive.patch,
gnu/packages/patches/unzip-alt-iconv-utf8-print.patch,
gnu/packages/patches/unzip-alt-iconv-utf8.patch,
gnu/packages/patches/unzip-close.patch,
gnu/packages/patches/unzip-exec-shield.patch,
gnu/packages/patches/unzip-fix-recmatch.patch,
gnu/packages/patches/unzip-manpage-fix.patch,
gnu/packages/patches/unzip-overflow.patch,
gnu/packages/patches/unzip-symlink.patch,
gnu/packages/patches/unzip-timestamp.patch,
gnu/packages/patches/unzip-valgrind.patch,
gnu/packages/patches/unzip-x-option.patch,
gnu/packages/patches/unzip-zipbomb-manpage.patch,
gnu/packages/patches/unzip-zipbomb-part1.patch,
gnu/packages/patches/unzip-zipbomb-part2.patch,
gnu/packages/patches/unzip-zipbomb-part3.patch: New patches.
* gnu/local.mk (dist_patch_DATA): Register them.
* gnu/packages/compression.scm (unzip/fixed): New variable. Apply patches.
(unzip)[replacement]: Graft.

gnu/packages/patches/unzip-zipbomb-manpage.patch

@@ -0,0 +1,25 @@
+From 6fe72291a5563cdbcd2bdd87e36528537b7cdcfb Mon Sep 17 00:00:00 2001
+From: Jakub Martisko <jamartis@redhat.com>
+Date: Mon, 18 Nov 2019 14:17:46 +0100
+Subject: [PATCH] update the man page
+
+---
+ man/unzip.1 | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/man/unzip.1 b/man/unzip.1
+index 21816d1..4d66073 100644
+--- a/man/unzip.1
++++ b/man/unzip.1
+@@ -850,6 +850,8 @@ the specified zipfiles were not found.
+ invalid options were specified on the command line.
+ .IP 11
+ no matching files were found.
++.IP 12
++invalid zip file with overlapped components (possible zip bomb).
+ .IP 50
+ the disk is (or was) full during extraction.
+ .IP 51
+-- 
+2.23.0
+