Bug#489132: upgrade apt/aptitude first

[Vincent.McIntyre@csiro.au]

please find a typo patch below (should be 'quite', but lets' avoid
the issue entirely)

Index: upgrading.dbk
===================================================================
--- upgrading.dbk       (revision 5506)
+++ upgrading.dbk       (working copy)
@@ -706,7 +706,7 @@
   <para>
     Several bug reports have shown <systemitem
     role="package">aptitude</systemitem> and <systemitem
-    role="package">apt</systemitem> in etch are quiet often unable to
+    role="package">apt</systemitem> in etch are often unable to
     handle the upgrade to &releasename;. In &releasename;, <systemitem
     role="package">apt</systemitem> better deals with complex chains
     of packages requiring immediate configuration and <systemitem