doc: Fix typo in section "WAL configuration"

pg_stat_io has an attribute named fsync_time, not sync_time.

Oversight in 2f70871c2bc1.

Discussion: https://postgr.es/m/Z7RkQ0EfYaqqjgz/@ip-10-97-1-34.eu-west-3.compute.internal

diff --git a/doc/src/sgml/wal.sgml b/doc/src/sgml/wal.sgml
index 4c0bf710ddaff96c547137c49709fd637d56af74..52b5b8f793bc111aeaa95f2a5e27fab76ab726c4 100644 (file)
--- a/doc/src/sgml/wal.sgml
+++ b/doc/src/sgml/wal.sgml
@@ -813,7 +813,7 @@
    When  is enabled, the total
    amounts of time XLogWrite writes and
    issue_xlog_fsync syncs WAL data to disk are counted as
-   write_time and sync_time in
+   write_time and fsync_time in
     for the object
    wal, respectively.
    XLogWrite is normally called by