docs/176455: [patch][book/porters-handbook] convert to optionsNG for NLS, fix a closed literal tag

[Jason Helfman]

For completeness, here is the updated patch:

Index: book.xml
===================================================================
--- book.xml	(revision 41051)
+++ book.xml	(working copy)
@@ -5749,14 +5749,18 @@
  
  	<programlisting>GNU_CONFIGURE=		yes
  
-.if !defined(WITHOUT_NLS)
+.include <bsd.port.options.mk>
+
+.if ${PORT_OPTIONS:MNLS}
  USE_GETTEXT=		yes
  PLIST_SUB+=		NLS=""
  .else
  CONFIGURE_ARGS+=	--disable-nls
  PLIST_SUB+=		NLS="@comment "
-.endif</programlisting>
+.endif
  
+.include <bsd.port.mk></programlisting>
+
  	<para>The next item on your to-do list is to arrange so that
  	  the message catalog files are included in the packing list
  	  conditionally.  The <filename>Makefile</filename> part of

-- 
Jason Helfman
FreeBSD Committer | http://people.freebsd.org/~jgh | The Power To Serve