doc: clarify that max_wal_size is "during" checkpoints

Previous wording was "between".

Reported-by: Pavel Luzanov
Discussion: https://postgr.es/m/26906a54-d7cb-2f8e-eed7-e31660024694@postgrespro.ru

Backpatch-through: 9.5

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 10aa7b1756206e5f02883553aa1163d36442f6e1..6fcc2901ac427e309e03e5c29faa5ffc0fe13cfb 100644 (file)
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -2482,7 +2482,7 @@ include_dir 'conf.d'
       </term>
       <listitem>
        <para>
-        Maximum size to let the WAL grow to between automatic WAL
+        Maximum size to let the WAL grow during automatic
         checkpoints. This is a soft limit; WAL size can exceed
         <varname>max_wal_size</> under special circumstances, like
         under heavy load, a failing <varname>archive_command</>, or a high