Hi,
For manpage, this patch to upstream fix the problem.
diff --git a/imediff2-docbook.xml b/imediff2-docbook.xml
index 4f0eb14..32bf0a6 100644
--- a/imediff2-docbook.xml
+++ b/imediff2-docbook.xml
@@ -9,11 +9,15 @@
<!ENTITY dhusername "elonen">
<!ENTITY dhucpackage "<refentrytitle>imediff2</refentrytitle>">
<!ENTITY dhpackage "imediff2">
+ <!ENTITY dhtitle "imediff2 User Manual">
+ <!ENTITY dhucpackage "imediff2">
<!ENTITY gnu "<acronym>GNU</acronym>">
]>
<refentry>
<refentryinfo>
+ <title>&dhtitle;</title>
+ <productname>&dhpackage;</productname>
<address>
&dhemail;
</address>