Update Moshe Zadka's email address to one works and might last a while.
diff --git a/Doc/lib/libcmp.tex b/Doc/lib/libcmp.tex
index 4f81b3c..ad86310 100644
--- a/Doc/lib/libcmp.tex
+++ b/Doc/lib/libcmp.tex
@@ -2,7 +2,7 @@
          File comparisons}
 
 \declaremodule{standard}{cmp}
-\sectionauthor{Moshe Zadka}{mzadka@geocities.com}
+\sectionauthor{Moshe Zadka}{moshez@zadka.site.co.il}
 \modulesynopsis{Compare files very efficiently.}
 
 % XXX check version number before release!