defect, Deprecated return value of new by reference

[shadowhck]

Deprecated: Assigning the return value of new by reference is deprecated in D:\htdocs\wp-includes\class-simplepie.php on line 739

I think the solution would be to replace for example:

$this->sanitize =& new SimplePie_Sanitize;

solution:

$this->sanitize = new SimplePie_Sanitize;

The entire file wp-includes/class-simplepie.php has =& references.

[helenyhou]

#12367

[SergeyBiryukov]

Related: #20139, #21183