Add ref from logging chapter to slow_lookup_log main config option

diff --git a/doc/doc-docbook/spec.xfpt b/doc/doc-docbook/spec.xfpt
index 0fc3cf1db39d4772b90435313ace173a2c665d11..b086aee3e6fd32750d54791ef89ba9180755d9f7 100644 (file)
--- a/doc/doc-docbook/spec.xfpt
+++ b/doc/doc-docbook/spec.xfpt
@@ -35333,6 +35333,9 @@ selection marked by asterisks:
 
 &` all                        `&  all of the above
 .endd
+See also the &%slow_lookup_log%& main configuration option,
+section &<<SECID99>>&
+
 More details on each of these items follows:
 
 .ilist