Rename test for backend._CommonRestrictedCmdCheck

“TestWriteFile” was not renamed when adding the file based on
“ganeti.utils.io_unittest-runasroot.py”.

Signed-off-by: Michael Hanselmann <hansmi@google.com>
Reviewed-by: Guido Trotter <ultrotter@google.com>

test/ganeti.backend_unittest-runasroot.py

@@ -34,7 +34,7 @@ from ganeti import backend
 import testutils
 
 
-class TestWriteFile(testutils.GanetiTestCase):
+class TestCommonRestrictedCmdCheck(testutils.GanetiTestCase):
   def setUp(self):
     self.tmpdir = tempfile.mkdtemp()