wording cleanup for drop_on_error

diff --git a/doc/config.txt b/doc/config.txt
index f8fdb8db1e98f050aa26c6e30224a63d286fae98..e1def72c9d6ae015b7ca583ec8138d9b9219666c 100644 (file)
--- a/doc/config.txt
+++ b/doc/config.txt
@@ -276,7 +276,8 @@ Default: 60
 ==== drop_on_error ====
 
 If error appears from server, the connection will not be reused but dropped
-immediately.  Set to 0 if errors from server are normal for your workflow.
+after client is finished with it.  This allows to survive broken cached plans.
+Set to 0 if errors from server are normal for your workflow.
 
 Default: 1