Merging upstream version 1.12~pre2.

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

doc/zgrep.1

@@ -1,5 +1,5 @@
 .\" DO NOT MODIFY THIS FILE!  It was generated by help2man 1.47.16.
-.TH ZGREP "1" "January 2022" "zutils 1.11" "User Commands"
+.TH ZGREP "1" "April 2022" "zutils 1.12-pre2" "User Commands"
 .SH NAME
 zgrep \- search compressed files for a regular expression
 .SH SYNOPSIS
@@ -69,6 +69,9 @@ obtain patterns from <file>
 \fB\-F\fR, \fB\-\-fixed\-strings\fR
 <pattern> is a set of newline\-separated strings
 .TP
+\fB\-G\fR, \fB\-\-basic\-regexp\fR
+<pattern> is a basic regular expression (default)
+.TP
 \fB\-h\fR, \fB\-\-no\-filename\fR
 suppress the prefixing file name on output
 .TP
@@ -87,6 +90,12 @@ only print names of files containing matches
 \fB\-L\fR, \fB\-\-files\-without\-match\fR
 only print names of files containing no matches
 .TP
+\fB\-\-label=\fR<label>
+use <label> as file name for standard input
+.TP
+\fB\-\-line\-buffered\fR
+flush output on every line
+.TP
 \fB\-m\fR, \fB\-\-max\-count=\fR<n>
 stop after <n> matches
 .TP
@@ -105,7 +114,10 @@ show only the part of a line matching <pattern>
 \fB\-O\fR, \fB\-\-force\-format=\fR<fmt>
 force the format given (bz2, gz, lz, xz, zst)
 .TP
-\fB\-q\fR, \fB\-\-quiet\fR
+\fB\-P\fR, \fB\-\-perl\-regexp\fR
+<pattern> is a Perl regular expression
+.TP
+\fB\-q\fR, \fB\-\-quiet\fR, \fB\-\-silent\fR
 suppress all messages
 .TP
 \fB\-r\fR, \fB\-\-recursive\fR
@@ -117,6 +129,12 @@ recursively follow symbolic links
 \fB\-s\fR, \fB\-\-no\-messages\fR
 suppress error messages
 .TP
+\fB\-T\fR, \fB\-\-initial\-tab\fR
+make tabs line up (if needed)
+.TP
+\fB\-U\fR, \fB\-\-binary\fR
+don't strip CR characters at EOL (DOS/Windows)
+.TP
 \fB\-v\fR, \fB\-\-invert\-match\fR
 select non\-matching lines
 .TP
@@ -129,6 +147,9 @@ match only whole words
 \fB\-x\fR, \fB\-\-line\-regexp\fR
 match only whole lines
 .TP
+\fB\-Z\fR, \fB\-\-null\fR
+print 0 byte (ASCII NUL) after file name
+.TP
 \fB\-\-bz2=\fR<command>
 set compressor and options for bzip2 format
 .TP