Merging upstream version 1.12.

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 1.12-rc1, 5 December 2022).
+This manual is for Zutils (version 1.12, 7 January 2023).
 
 * Menu:
 
@@ -28,7 +28,7 @@ This manual is for Zutils (version 1.12-rc1, 5 December 2022).
 * Concept index::       Index of concepts
 
 
-   Copyright (C) 2009-2022 Antonio Diaz Diaz.
+   Copyright (C) 2009-2023 Antonio Diaz Diaz.
 
    This manual is free documentation: you have unlimited permission to copy,
 distribute, and modify it.
@@ -825,10 +825,6 @@ the original file is not deleted. The operation of 'zupdate' is meant to be
 safe and not cause any data loss. Therefore, existing lzip compressed files
 are never overwritten nor deleted.
 
-   Recompressing files from a read-only file system to another place can be
-done by first linking the files from the destination directory and then
-compressing the links: 'ln -s /src/foo.gz . && zupdate foo.gz'
-
    Combining the options '--force' and '--keep', as in
 'zupdate -f -k *.gz', verifies that there are no differences between each
 pair of files in a multiformat set of files.
@@ -838,7 +834,7 @@ extensions:
 '.bz2', '.gz', '.xz', '.zst', or '.Z', which are recompressed to '.lz';
 '.tbz', '.tbz2', '.tgz', '.txz', or '.tzst', which are recompressed to
 '.tlz'.
-Keeping the combined extensions ('.tgz' -> '.tlz') may be useful when
+Keeping the combined extensions ('.tgz' --> '.tlz') may be useful when
 recompressing Slackware packages, for example.
 
    Bzip2, gzip, and lzip are the primary formats. Xz and zstd are optional.
@@ -899,7 +895,8 @@ compressor can't be run, or comparison fails).
 '-k'
 '--keep'
      Keep (don't delete) the input file after comparing it with the lzip
-     file.
+     file. Use it when recompressing files from a read-only file system.
+     (See option '--destdir' above).
 
 '-l'
 '--lzip-verbose'
@@ -987,20 +984,20 @@ Concept index
 
 Tag Table:
 Node: Top217
-Node: Introduction1156
-Node: Common options4003
-Ref: version4489
-Ref: compressor-requirements6440
-Node: Configuration6835
-Node: Zcat7868
-Node: Zcmp10568
-Node: Zdiff14825
-Node: Zgrep18008
-Node: Ztest24116
-Node: Zupdate26915
-Ref: lz-compressor32442
-Node: Problems33143
-Node: Concept index33677
+Node: Introduction1151
+Node: Common options3998
+Ref: version4484
+Ref: compressor-requirements6435
+Node: Configuration6830
+Node: Zcat7863
+Node: Zcmp10563
+Node: Zdiff14820
+Node: Zgrep18003
+Node: Ztest24111
+Node: Zupdate26910
+Ref: lz-compressor32325
+Node: Problems33026
+Node: Concept index33560
 
 End Tag Table