call site 0 for path.svnurl.visit
path/testing/fscommon.py - line 124
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   def test_visit_filesonly(self):
       l = []
->     for i in self.root.visit(lambda x: x.check(file=1)): 
           l.append(i.relto(self.root))
       assert not "sampledir" in l
       assert self.root.sep.join(["sampledir", "otherfile"]) in l