tests/test-issue433

Fix confusing message from hg revert (issue332)

   % mkdir sub1
   % touch sub1/file1
   % hg add sub1/
   adding sub1/file1
   % hg rev sub1
   sub1: No such file in rev e4c586763258
   forgetting sub1/file1

#!/bin/sh
# http://www.selenic.com/mercurial/bts/issue433

hg init a
cd a       
echo a > a 
hg commit -Ama 

hg parents -r 0 doesnotexist
true