doc: Fix grammar.

Michael Paquier

Discussion: http://postgr.es/m/20180209135327.GC29003@paquier.xyz

diff --git a/doc/src/sgml/monitoring.sgml b/doc/src/sgml/monitoring.sgml
index e138d1ef0769f7076a1deb8de39f046379aa843a..82c015806e38a1d5e19a730ef772cae897ddeec2 100644 (file)
--- a/doc/src/sgml/monitoring.sgml
+++ b/doc/src/sgml/monitoring.sgml
@@ -1068,7 +1068,7 @@ postgres   27093  0.0  0.0  30096  2752 ?        Ss   11:34   0:00 postgres: ser
         </row>
         <row>
          <entry><literal>oldserxid</literal></entry>
-         <entry>Waiting to I/O on an oldserxid buffer.</entry>
+         <entry>Waiting for I/O on an oldserxid buffer.</entry>
         </row>
         <row>
          <entry><literal>wal_insert</literal></entry>