Retry stream_select if interrupted by signal (#2074)
Retry stream_select if interrupted by signal (#2074)

Co-authored-by: Bart Butler <6f7d21d00d2837e418398ed9c44a6360cc90ef58@protonmail.com>
nawawi/PHPMailer,jimjag/PHPMailer,nawawi/PHPMailer,PHPMailer/PHPMailer,jimjag/PHPMailer,PHPMailer/PHPMailer