Fix formatting issues

IPython/core/history.py

@@ -361,8 +361,9 b' class HistoryAccessor(HistoryAccessorBase):'
         self.writeout_cache()
         if not include_latest:
             n += 1
-        cur = self._run_sql("ORDER BY session DESC, line DESC LIMIT ?",
-                                (n,), raw=raw, output=output)
+        cur = self._run_sql(
+            "ORDER BY session DESC, line DESC LIMIT ?", (n,), raw=raw, output=output
+        )
         if not include_latest:
             return reversed(list(cur)[1:])
         return reversed(list(cur))

IPython/core/tests/test_history.py

@@ -228,6 +228,7 b' def test_histmanager_disabled():'
     # hist_file should not be created
     assert hist_file.exists() is False
 
+
 def test_get_tail_session_awareness():
     """Test .get_tail() is:
                 - session specific in HistoryManager