_parser_common_syndication_title in common_syndication_parser.inc does not strip html tags before constructing a title

If the title field is blank in an XML feed, the title is constructed from the description. However, this description often has HTML code in it, and the _parser_common_syndication_title does not handle that case. I added strip_tags to line 534 of common_syndication_parser.inc, changing that line to:

$words = preg_split("/[\s,]+/", strip_tags($body));

and now the generated titles look all right (i.e., no HTML).