Add missing changelog entry.

debian/changelog

@@ -8,6 +8,7 @@ dpkg (1.15.1) UNRELEASED; urgency=low
     when building 3.0 (quilt) source packages. Closes: #518453
   * Fix dpkg-shlibdeps so that it works again when analyzing binaries
     outside of package's directory. Closes: #518687
+  * Modify dpkg-shlibdeps to let shlibs.local override symbols files too.
 
   [ Updated dselect translations ]
   * German (Sven Joachim).