[REF] tests: inline the full docstring in the logs

meaningless entries like
` Checks that the bundle's cache is working, i.e. that a bundle creates only enough
become
` Checks that the bundle's cache is working, i.e. that a bundle creates only enough ir.attachment records when rendered multiple times

see https://docs.python.org/2/library/unittest.html#unittest.TestCase.shortDescription

openerp/tests/common.py

@@ -131,6 +131,10 @@ class BaseCase(unittest.TestCase):
         else:
             return self._assertRaises(exception)
 
+    def shortDescription(self):
+        doc = self._testMethodDoc
+        return doc and ' '.join(filter(None, map(str.strip, doc.splitlines()))) or None
+
 
 class TransactionCase(BaseCase):
     """ TestCase in which each test method is run in its own transaction,