MFde: Update to the German documentation set.
doc/de_DE.ISO8859-1/books/developers-handbook/l10n/chapter.sgml 1.13 -> 1.14
doc/de_DE.ISO8859-1/books/developers-handbook/x86/chapter.sgml 1.18 -> 1.19
doc/de_DE.ISO8859-1/books/fdp-primer/sgml-markup/chapter.sgml 1.79 -> 1.80
doc/de_DE.ISO8859-1/books/handbook/config/chapter.sgml fixes only
doc/de_DE.ISO8859-1/books/handbook/desktop/chapter.sgml 1.96 -> 1.97
doc/de_DE.ISO8859-1/books/handbook/geom/chapter.sgml 1.48 -> 1.50
doc/de_DE.ISO8859-1/books/handbook/mirrors/chapter.sgml 1.479 -> 1.489
doc/de_DE.ISO8859-1/books/handbook/ppp-and-slip/chapter.sgml 1.192 -> 1.194
Obtained from: The FreeBSD German Documentation Project