[3.7] bpo-34789: xml.sax.make_parser expects a list not just any sequence (GH-9542)

(cherry picked from commit 1487b651caa62647f8f8c9e8432e475e3566130c)
Co-authored-by: Andrés Delfino <adelfino@gmail.com>

Doc/library/xml.sax.rst

@@ -31,7 +31,7 @@ The convenience functions are:
 
    Create and return a SAX :class:`~xml.sax.xmlreader.XMLReader` object.  The
    first parser found will
-   be used.  If *parser_list* is provided, it must be a sequence of strings which
+   be used.  If *parser_list* is provided, it must be a list of strings which
    name modules that have a function named :func:`create_parser`.  Modules listed
    in *parser_list* will be used before modules in the default list of parsers.