Fix skip.

Argument is required.

master/product/Vifib/tests/testVifibSlapBang.py

@@ -299,8 +299,7 @@ class TestVifibSlapBang(TestVifibSlapWebServiceMixin):
     sequence_list.addSequenceString(sequence_string)
     sequence_list.play(self)
 
-  # Computer owner cannot do bang yet
-  @skip
+  @skip('Computer owner cannot do bang yet')
   def test_admin_bang_computer_complex_tree(self):
     """Checks that bangs works on complex tree
 

master/product/Vifib/tests/testVifibXHTML.py

@@ -112,7 +112,7 @@ class TestVifibXHTML(testVifibMixin):
               error_list.append(form_path)
     self.assertEquals(error_list, [])
 
-  @skip
+  @skip('Skipped.')
   def test_configurationOfFieldLibrary(self):
     self.login()
     error_list = []