Apply suggestions from code review

Author: serhiy-storchaka

Lib/sqlite3/__main__.py

@@ -70,9 +70,8 @@ def runsource(self, source, filename="<input>", symbol="single"):
                     pass
                 case _ as unknown:
                     t = theme.traceback
-                    print(f'{t.type}Error{t.reset}:{t.message} unknown command '
-                          f'or invalid arguments: "{unknown}"{t.reset}',
-                          file=sys.stderr)
+                    self.write(f'{t.type}Error{t.reset}: {t.message}unknown '
+                               f'command: "{unknown}"{t.reset}\n')
         else:
             if not sqlite3.complete_statement(source):
                 return True

Lib/test/test_sqlite3/test_cli.py

@@ -130,7 +130,7 @@ def test_interact_dot_commands_unknown(self):
         self.assertEndsWith(out, self.PS1)
         self.assertEqual(out.count(self.PS1), 2)
         self.assertEqual(out.count(self.PS2), 0)
-        self.assertIn("Error: unknown command or invalid arguments", err)
+        self.assertIn('Error: unknown command "', err)
         # test "unknown_command" is pointed out in the error message
         self.assertIn("unknown_command", err)