Update specfile/types.py

Co-authored-by: Nikola Forró <[email protected]>

Author: majamassarini

specfile/types.py

@@ -6,7 +6,7 @@
 try:
     from typing import SupportsIndex
 except ImportError:
-    # define our own SupportsIndex type for older version of typing_extensions (EL 8)
+    # define our own SupportsIndex type for older version of typing (Python 3.7 and older)
     from typing_extensions import Protocol
 
     class SupportsIndex(Protocol, metaclass=abc.ABCMeta):  # type: ignore [no-redef]