Update liblzma to 5.6.2

Author: dlemstra

.ImageMagick/ImageMagick.version.h

@@ -1,2 +1,2 @@
-#define DELEGATE_VERSION_NUM     5,4,6
-#define DELEGATE_VERSION_STRING "5.4.6 (2024-01-26)"
+#define DELEGATE_VERSION_NUM     5,6,2
+#define DELEGATE_VERSION_STRING "5.6.2 (2024-05-29)"

.gitignore

@@ -0,0 +1 @@
+<https://www.gnu.org/software/gettext/manual/html_node/Users.html>

ABOUT-NLS

@@ -2,38 +2,57 @@
 Authors of XZ Utils
 ===================
 
-    XZ Utils is developed and maintained by Lasse Collin
-    <[email protected]> and Jia Tan <[email protected]>.
+    XZ Utils is developed and maintained by
+    Lasse Collin <[email protected]>.
 
     Major parts of liblzma are based on code written by Igor Pavlov,
     specifically the LZMA SDK <https://7-zip.org/sdk.html>. Without
     this code, XZ Utils wouldn't exist.
 
-    The SHA-256 implementation in liblzma is based on the code found from
-    7-Zip <https://7-zip.org/>, which has a modified version of the SHA-256
-    code found from Crypto++ <https://www.cryptopp.com/>. The SHA-256 code
-    in Crypto++ was written by Kevin Springle and Wei Dai.
+    The SHA-256 implementation in liblzma is based on code written by
+    Wei Dai in Crypto++ Library <https://www.cryptopp.com/>.
 
-    Some scripts have been adapted from gzip. The original versions
-    were written by Jean-loup Gailly, Charles Levert, and Paul Eggert.
-    Andrew Dudman helped adapting the scripts and their man pages for
-    XZ Utils.
+    A few scripts have been adapted from GNU gzip. The original
+    versions were written by Jean-loup Gailly, Charles Levert, and
+    Paul Eggert. Andrew Dudman helped adapting the scripts and their
+    man pages for XZ Utils.
 
     The initial version of the threaded .xz decompressor was written
     by Sebastian Andrzej Siewior.
 
     The initial version of the .lz (lzip) decoder was written
     by Michał Górny.
 
-    CLMUL-accelerated CRC code was contributed by Ilya Kurdyukov.
+    Architecture-specific CRC optimizations were contributed by
+    Ilya Kurdyukov, Hans Jansen, and Chenxi Mao.
 
     Other authors:
       - Jonathan Nieder
       - Joachim Henke
 
-    The GNU Autotools-based build system contains files from many authors,
-    which I'm not trying to list here.
+    Special author: Jia Tan was a co-maintainer in 2022-2024. He and
+    the team behind him inserted a backdoor (CVE-2024-3094) into
+    XZ Utils 5.6.0 and 5.6.1 releases. He suddenly disappeared when
+    this was discovered.
 
-    Several people have contributed fixes or reported bugs. Most of them
-    are mentioned in the file THANKS.
+    Many people have contributed improvements or reported bugs.
+    Most of these people are mentioned in the file THANKS.
+
+    The translations of the command line tools and man pages have been
+    contributed by many people via the Translation Project:
+
+      - https://translationproject.org/domain/xz.html
+      - https://translationproject.org/domain/xz-man.html
+
+    The authors of the translated man pages are in the header comments
+    of the man page files. In the source package, the authors of the
+    translations are in po/*.po and po4a/*.po files.
+
+    Third-party code whose authors aren't listed here:
+
+      - GNU getopt_long() in the 'lib' directory is included for
+        platforms that don't have a usable getopt_long().
+
+      - The build system files from GNU Autoconf, GNU Automake,
+        GNU Libtool, GNU Gettext, Autoconf Archive, and related files.