Add a missing Changelog entry

ChangeLog

@@ -1,3 +1,9 @@
+2006-05-18  Frank Lichtenheld  <djpig@debian.org>
+
+	* lib/showpkg.c (show1package): Test the correct
+	pointer against NULL so that arbitrary fields get
+	be printed.
+
 2006-05-15  Nicolas François  <nicolas.francois@centraliens.net>
 
 	* src/packages.c: Use fc_dependsversion (set by