Sendgrid Maillog printing debug variables at the top of body element

I noticed this, when maillog debug is enabled and running the password reset email, arrays can be dumped to the top of the screen in the body content, rather that in the maillog entry, this is because of a print_r statement when generating a log record. I've fixed this with the following patch on line 383 of sendgrid.mail.inc:

if (!empty($filters = $sendgrid_message->smtpapi->getFilters())) {
$record->body .= 'Filters:' . "\n";
foreach ($filters as $item) {
- $record->body .= print_r($item) . "\n";
+ $record->body .= print_r($item, TRUE) . "\n";
}
$record->body .= $divider;
$record->body .= $divider;