pg_upgrade: Update obsolescent documentation note

Recently released xfsprogs 5.1.0 has reflink support enabled by
default, so the note that it's not enabled by default can be removed.

diff --git a/doc/src/sgml/ref/pgupgrade.sgml b/doc/src/sgml/ref/pgupgrade.sgml
index 82886760f108eb6309ebc561a380b4d51e83ece7..2bddd6a937e7cb708cae7904a08513a463492b94 100644 (file)
--- a/doc/src/sgml/ref/pgupgrade.sgml
+++ b/doc/src/sgml/ref/pgupgrade.sgml
@@ -206,8 +206,7 @@
         systems.  If it is selected but not supported, the
         <application>pg_upgrade</application> run will error.  At present, it
         is supported on Linux (kernel 4.5 or later) with Btrfs and XFS (on
-        file systems created with reflink support, which is not the default
-        for XFS at this writing), and on macOS with APFS.
+        file systems created with reflink support), and on macOS with APFS.
        </para>
       </listitem>
      </varlistentry>