Index: en_US.ISO8859-1/books/porters-handbook/quick-porting/chapter.xml
===================================================================
--- en_US.ISO8859-1/books/porters-handbook/quick-porting/chapter.xml
+++ en_US.ISO8859-1/books/porters-handbook/quick-porting/chapter.xml
@@ -62,7 +62,9 @@
 	existing port may contain additional lines in the header,
 	such as the name of the port and the date it was created.
 	This additional information has been declared obsolete, and
-	is being phased out.</para>
+	is being phased out. An exception is made for signatures of
+	old ports ("Created by:..."): those lines are kept, although
+	you are discouraged to create such lines in your new ports.</para>
     </note>
 
     <para>Try to figure it out.  Do not worry about the