fix tests

src/zc/buildout/virtualenv.txt

@@ -167,7 +167,7 @@ First, let's try running bootstrap.
 If bootstrap didn't look out for a broken -S, that would have failed.  Moreover,
 take a look at bin/buildout:
 
-    >>> cat('bin', 'buildout') # doctest: +NORMALIZE_WHITESPACE
+    >>> cat('bin', 'buildout') # doctest: +ELLIPSIS
     #!/executable_buildout/bin/py
     <BLANKLINE>
     import sys
@@ -175,8 +175,7 @@ take a look at bin/buildout:
       '/broken_S/eggs/setuptools-0.0-pyN.N.egg',
       '/broken_S/eggs/zc.buildout-0.0-pyN.N.egg',
       ]
-    <BLANKLINE>
-    import zc.buildout.buildout
+    ...import zc.buildout.buildout
     <BLANKLINE>
     if __name__ == '__main__':
         zc.buildout.buildout.main()