Thanks for reporting that. I installed the attached patch.
From 496cf61638852ba20dcdec1f64027b1d9fd74539 Mon Sep 17 00:00:00 2001
From: Paul Eggert <egg...@cs.ucla.edu>
Date: Mon, 11 Jul 2022 10:34:25 -0500
Subject: [PATCH] * doc/tar.1: Fix --xattrs-exclude typo.
---
doc/tar.1 | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/doc/tar.1 b/doc/tar.1
index 180f4cbb..ec5f5639 100644
--- a/doc/tar.1
+++ b/doc/tar.1
@@ -13,7 +13,7 @@
.\"
.\" You should have received a copy of the GNU General Public License
.\" along with this program. If not, see <http://www.gnu.org/licenses/>.
-.TH TAR 1 "February 15, 2022" "TAR" "GNU TAR Manual"
+.TH TAR 1 "July 11, 2022" "TAR" "GNU TAR Manual"
.SH NAME
tar \- an archiving utility
.SH SYNOPSIS
@@ -610,13 +610,13 @@ Enable extended attributes support.
Disable extended attributes support.
.TP
.BI \-\-xattrs\-exclude= PATTERN
-Specify the exclude pattern for xattr keys. \fIPATTERN\fR is a POSIX
-regular expression, e.g. \fB\-\-xattrs\-exclude='^user\.'\fR, to exclude
+Specify the exclude pattern for xattr keys. \fIPATTERN\fR is a globbing
+pattern, e.g. \fB\-\-xattrs\-exclude='user.*'\fR to include only
attributes from the user namespace.
.TP
.BI \-\-xattrs\-include= PATTERN
-Specify the include pattern for xattr keys. \fIPATTERN\fR is a POSIX
-regular expression.
+Specify the include pattern for xattr keys. \fIPATTERN\fR is a globbing
+pattern.
.SS Device selection and switching
.TP
\fB\-f\fR, \fB\-\-file\fR=\fIARCHIVE\fR
--
2.34.1
