man/po: Append the German addendum at the end of the translation

Do not assume that every page has the SEE ALSO section.

debian/changelog

@@ -31,6 +31,8 @@ dpkg (1.18.11) UNRELEASED; urgency=medium
     - Switch from groff escape sequences to UTF-8 in man pages sources.
     - Disable hyphenation in man pages globally, because it performs very
       poorly on many technical terms.
+    - Append the German man pages addendum at the end of the translation,
+      instead of assuming that every page has the SEE ALSO section.
   * Build system:
     - Add support for profiling perl modules.
     - Clean up compiler and linker automatic flag usage in configure.

man/po/de.add

@@ -1,4 +1,4 @@
-PO4A-HEADER:mode=after;position=^\.TH;beginboundary=^\.SH "SIEHE AUCH"
+PO4A-HEADER:mode=after;position=^\.TH;beginboundary=FakePo4aBoundary
 .SH ÜBERSETZUNG
 Die deutsche Übersetzung wurde 2004, 2006-2016 von Helge Kreutzmann
 <debian@helgefjell.de>, 2007 von Florian Rehnisch <eixman@gmx.de> und