fix some copyright description

auto_py2to3/parse/__init__.py

 #!/usr/bin/python3
 # -*- coding: utf-8 -*-
-# auto_py2to3is licensed under the Mulan PSL v2.
+# auto_py2to3 is licensed under the Mulan PSL v2.
 # You can use this software according to the terms and conditions of the Mulan PSL v2.
 # You may obtain a copy of Mulan PSL v2 at:
 #     http://license.coscl.org.cn/MulanPSL2

auto_py2to3/parse/parse.py

 #!/usr/bin/python3
 # -*- coding: utf-8 -*-
-# auto_py2to3is licensed under the Mulan PSL v2.
+# auto_py2to3 is licensed under the Mulan PSL v2.
 # You can use this software according to the terms and conditions of the Mulan PSL v2.
 # You may obtain a copy of Mulan PSL v2 at:
 #     http://license.coscl.org.cn/MulanPSL2

auto_py2to3/py2to3.py

 #!/usr/bin/python3
 # -*- coding: utf-8 -*-
-# auto_py2to3is licensed under the Mulan PSL v2.
+# auto_py2to3 is licensed under the Mulan PSL v2.
 # You can use this software according to the terms and conditions of the Mulan PSL v2.
 # You may obtain a copy of Mulan PSL v2 at:
 #     http://license.coscl.org.cn/MulanPSL2

auto_py2to3/utils.py

 #!/usr/bin/python3
 # -*- coding: utf-8 -*-
-# auto_py2to3is licensed under the Mulan PSL v2.
+# auto_py2to3 is licensed under the Mulan PSL v2.
 # You can use this software according to the terms and conditions of the Mulan PSL v2.
 # You may obtain a copy of Mulan PSL v2 at:
 #     http://license.coscl.org.cn/MulanPSL2

setup.py

 #!/usr/bin/python3
 # -*- coding: utf-8 -*-
-# auto_py2to3is licensed under the Mulan PSL v2.
+# auto_py2to3 is licensed under the Mulan PSL v2.
 # You can use this software according to the terms and conditions of the Mulan PSL v2.
 # You may obtain a copy of Mulan PSL v2 at:
 #     http://license.coscl.org.cn/MulanPSL2