Document the new zstd options.

diff --git a/tar/bsdtar.1 b/tar/bsdtar.1
index b57835adbef20cf173a081d4212edfe2b4f0f1ea..1b78fbc04943865d12bac8193601750b38ff1a57 100644 (file)
--- a/tar/bsdtar.1
+++ b/tar/bsdtar.1
@@ -25,7 +25,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd January 31, 2020
+.Dd December 1, 2022
 .Dt TAR 1
 .Os
 .Sh NAME
@@ -643,6 +643,19 @@ Specify the number of worker threads to use.
 Setting threads to a special value 0 makes
 .Xr zstd 1
 use as many threads as there are CPU cores on the system.
+.It Cm zstd:frame-per-file
+Start a new compression frame at the beginning of each file in the
+archive.
+.It Cm zstd:min-frame-size Ns = Ns Ar N
+In combination with
+.Cm zstd:frame-per-file ,
+do not start a new compression frame unless the current frame is at least
+.Ar N
+bytes.
+.It Cm zstd:max-frame-size Ns = Ns Ar N
+Start a new compression frame as soon as the current frame exceeds
+.Ar N
+bytes.
 .It Cm lzop:compression-level
 A decimal integer from 1 to 9 specifying the lzop compression level.
 .It Cm xz:compression-level