Merging upstream version 1.13.

Signed-off-by: Daniel Baumann <daniel@debian.org>

doc/zutils.info

@@ -11,7 +11,7 @@ File: zutils.info,  Node: Top,  Next: Introduction,  Up: (dir)
 Zutils Manual
 *************
 
-This manual is for Zutils (version 1.13-rc1, 31 December 2023).
+This manual is for Zutils (version 1.13, 23 January 2024).
 
 * Menu:
 
@@ -28,7 +28,7 @@ This manual is for Zutils (version 1.13-rc1, 31 December 2023).
 * Concept index::       Index of concepts
 
 
-   Copyright (C) 2009-2023 Antonio Diaz Diaz.
+   Copyright (C) 2009-2024 Antonio Diaz Diaz.
 
    This manual is free documentation: you have unlimited permission to copy,
 distribute, and modify it.
@@ -964,21 +964,21 @@ Concept index
 
 Tag Table:
 Node: Top217
-Node: Introduction1157
-Ref: search-order2309
-Node: Common options3466
-Ref: version4032
-Ref: compressor-requirements5983
-Node: Configuration7372
-Node: Zcat8405
-Node: Zcmp11144
-Node: Zdiff14412
-Node: Zgrep17495
-Node: Ztest23642
-Node: Zupdate26435
-Ref: lz-compressor31843
-Node: Problems32544
-Node: Concept index33078
+Node: Introduction1152
+Ref: search-order2304
+Node: Common options3461
+Ref: version4027
+Ref: compressor-requirements5978
+Node: Configuration7367
+Node: Zcat8400
+Node: Zcmp11139
+Node: Zdiff14407
+Node: Zgrep17490
+Node: Ztest23637
+Node: Zupdate26430
+Ref: lz-compressor31838
+Node: Problems32539
+Node: Concept index33073
 
 End Tag Table