Fixup pr

Author: StanFromIreland

Lib/sqlite3/__main__.py

@@ -61,8 +61,8 @@ def runsource(self, source, filename="<input>", symbol="single"):
                 case "":
                     pass
                 case _ as unknown:
-                    self.write("Error: unknown command or invalid arguments:"
-                               f'  "{unknown}".\n')
+                    print("Error: unknown command or invalid arguments:"
+                               f'  "{unknown}"', file=sys.stderr)
         else:
             if not sqlite3.complete_statement(source):
                 return True

Lib/test/test_sqlite3/test_cli.py

@@ -129,7 +129,7 @@ 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", err)
+        self.assertIn("Error: unknown command or invalid arguments", err)
         # test "unknown_command" is pointed out in the error message
         self.assertIn("unknown_command", err)