Path-normalize expected output.

git-svn-id: http://svn.zope.org/repos/main/zc.buildout/trunk@71417 62d5b8a3-27da-0310-9561-8e5933582275

zc.recipe.egg_/src/zc/recipe/egg/custom.txt

@@ -298,7 +298,7 @@ TWO to be defined.  This will cause the module-variable, 'val', to be
 set with a value of 2.
 
     >>> print system(buildout),
-    buildout: Develop: /tmp/tmpCXjRps/_TEST_/sample-buildout/demo
+    buildout: Develop: /sample-buildout/demo
     buildout: Uninstalling extdemo
     buildout: Installing extdemo
     buildout: Updating demo