Merging upstream version 1.11.

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

doc/zcat.1

@@ -1,5 +1,5 @@
 .\" DO NOT MODIFY THIS FILE!  It was generated by help2man 1.47.16.
-.TH ZCAT "1" "January 2021" "zutils 1.10" "User Commands"
+.TH ZCAT "1" "January 2022" "zutils 1.11" "User Commands"
 .SH NAME
 zcat \- decompress and concatenate files to standard output
 .SH SYNOPSIS
@@ -21,7 +21,7 @@ same compressed format.
 If no files are specified, recursive searches examine the current
 working directory, and nonrecursive searches read standard input.
 .PP
-The formats supported are bzip2, gzip, lzip, and xz.
+The formats supported are bzip2, gzip, lzip, xz, and zstd.
 .PP
 Exit status is 0 if no errors occurred, 1 otherwise.
 .SH OPTIONS
@@ -54,7 +54,7 @@ number all output lines
 don't read runtime configuration file
 .TP
 \fB\-O\fR, \fB\-\-force\-format=\fR<fmt>
-force the format given (bz2, gz, lz, xz)
+force the format given (bz2, gz, lz, xz, zst)
 .TP
 \fB\-q\fR, \fB\-\-quiet\fR
 suppress all messages
@@ -91,13 +91,28 @@ set compressor and options for lzip format
 .TP
 \fB\-\-xz=\fR<command>
 set compressor and options for xz format
+.TP
+\fB\-\-zst=\fR<command>
+set compressor and options for zstd format
 .SH "REPORTING BUGS"
 Report bugs to zutils\-bug@nongnu.org
 .br
 Zutils home page: http://www.nongnu.org/zutils/zutils.html
 .SH COPYRIGHT
-Copyright \(co 2021 Antonio Diaz Diaz.
+Copyright \(co 2022 Antonio Diaz Diaz.
 License GPLv2+: GNU GPL version 2 or later <http://gnu.org/licenses/gpl.html>
 .br
 This is free software: you are free to change and redistribute it.
 There is NO WARRANTY, to the extent permitted by law.
+.SH "SEE ALSO"
+The full documentation for
+.B zcat
+is maintained as a Texinfo manual.  If the
+.B info
+and
+.B zcat
+programs are properly installed at your site, the command
+.IP
+.B info zutils
+.PP
+should give you access to the complete manual.