fix sdop directive in filter.xfpt

diff --git a/doc/doc-docbook/filter.xfpt b/doc/doc-docbook/filter.xfpt
index b0e1762..4821ef1 100644 (file)
--- a/doc/doc-docbook/filter.xfpt
+++ b/doc/doc-docbook/filter.xfpt
@@ -21,7 +21,7 @@
 <?sdop
   foot_right_recto="&chaptertitle;"
   foot_right_verso="&chaptertitle;"
-  table_warn_soft_overflow="no"
+  table_warn_overflow="overprint"
   toc_chapter_blanks="yes,yes"
   toc_title="Exim's interfaces to mail filtering"
 ?>