Update Lib/test/test_codecs.py

Co-authored-by: Victor Stinner <[email protected]>

Author: methane

Lib/test/test_codecs.py

@@ -23,7 +23,7 @@
 
 
 def codecs_open_no_warn(*args, **kwargs):
-    """call codecs.open(*args, **kwargs) ignoring DeprecationWarning"""
+    """Call codecs.open(*args, **kwargs) ignoring DeprecationWarning."""
     with warnings.catch_warnings():
         warnings.simplefilter("ignore")
         return codecs.open(*args, **kwargs)