call site 5 for path.svnurl.open
path/testing/fscommon.py - line 82
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   def test_readlines(self):
       fn = self.root.join('samplefile')
->     contents = fn.readlines()
       assert contents == ['samplefile\n']
path/common.py - line 348
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   def readlines(self, cr=1):
       """ read and return a list of lines from the path. if cr is False, the
   newline will be removed from the end of each line. """
       if not cr:
           content = self.read('rU')
           return content.split('\n')
       else:
->         f = self.open('rU')
           try:
               return f.readlines()
           finally:
               f.close()