Issue #13365: correct an error in the documentation of str.expandtabs

Doc/library/stdtypes.rst

@@ -1033,7 +1033,7 @@ functions based on regular expressions.
 
 .. method:: str.expandtabs([tabsize])
 
-   Return a copy of the string where all tab characters are replaced by one or
+   Return a copy of the string where all tab characters are replaced by zero or
    more spaces, depending on the current column and the given tab size.  The
    column number is reset to zero after each newline occurring in the string.
    If *tabsize* is not given, a tab size of ``8`` characters is assumed.  This

Misc/ACKS

@@ -285,6 +285,7 @@ Mark Favas
 Niels Ferguson
 Sebastian Fernandez
 Florian Festi
+John Feuerstein
 Vincent Fiack
 Tomer Filiba
 Jeffrey Finkelstein