support/testing: test_python_django: add missing line

flake8 complains with:

test_python_django.py:25:1: E302 expected 2 blank lines, found 1

Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>

support/testing/tests/package/test_python_django.py

@@ -22,6 +22,7 @@ class TestPythonDjango(TestPythonPackageBase):
         cmd = "netstat -ltn 2>/dev/null | grep 0.0.0.0:1234"
         self.assertRunOk(cmd)
 
+
 class TestPythonPy3Django(TestPythonDjango):
     __test__ = True
     config = TestPythonDjango.config + \