Corrected docstring quotes in various code.

django/forms/widgets.py

@@ -776,7 +776,7 @@ class CheckboxSelectMultiple(ChoiceWidget):
         return False
 
     def id_for_label(self, id_, index=None):
-        """"
+        """
         Don't include for="field_0" in <label> because clicking such a label
         would toggle the first checkbox.
         """

tests/admin_scripts/tests.py

@@ -194,7 +194,7 @@ class DjangoAdminNoSettings(AdminScriptTestCase):
         self.assertOutput(err, "No module named '?bad_settings'?", regex=True)
 
     def test_commands_with_invalid_settings(self):
-        """"
+        """
         Commands that don't require settings succeed if the settings file
         doesn't exist.
         """

tests/forms_tests/tests/test_formsets.py

@@ -266,7 +266,7 @@ class FormsFormsetTestCase(SimpleTestCase):
         self.assertEqual([form.cleaned_data for form in formset.forms], [{}, {}, {}])
 
     def test_min_num_displaying_more_than_one_blank_form(self):
-        """"
+        """
         More than 1 empty form can also be displayed using formset_factory's
         min_num argument. It will (essentially) increment the extra argument.
         """

tests/forms_tests/widget_tests/test_checkboxselectmultiple.py

@@ -196,7 +196,7 @@ class CheckboxSelectMultipleTest(WidgetTest):
         self.assertIs(widget.value_omitted_from_data({'field': 'value'}, {}, 'field'), False)
 
     def test_label(self):
-        """"
+        """
         CheckboxSelectMultiple doesn't contain 'for="field_0"' in the <label>
         because clicking that would toggle the first checkbox.
         """