[1.7.x] Fixed #23303 -- Added BEGIN and COMMIT statements to the output of sqlmigrate.

Backport of 5853c87a45 from master.

Conflicts:
	django/core/management/commands/sqlmigrate.py
	tests/user_commands/tests.py

tests/user_commands/tests.py

@@ -74,6 +74,11 @@ class CommandTests(SimpleTestCase):
             if current_path is not None:
                 os.environ['PATH'] = current_path
 
+    def test_output_transaction(self):
+        out = StringIO()
+        management.call_command('transaction', stdout=out, no_color=True)
+        self.assertEqual(out.getvalue(), 'BEGIN;\nHello!\n\nCOMMIT;\n')
+
 
 class UtilsTests(SimpleTestCase):