- remove duplicated -o parameter for buildout

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@40920 20353a03-c40f-0410-a6d1-a30d3c3de9de

buildout/README-2.12.txt

@@ -122,7 +122,7 @@ parts =
   supervisor-instance
 ^D
 $ ~/erp5.buildout/bin/bootstrap2.6      # 4
-$ bin/buildout -ov         # 5
+$ bin/buildout -v         # 5
 
 Notice how we managed to run buildout in "offline-mode" (offline statement with
 !! above).