sendSMS() field names don't match - message doesn't send

In CRM/Activity/BAO/Activity.php the sendSMS() function has the wrong field name for the body of the SMS.

Currently it is:
Code: [Select]
$text = &$activityParams['text_message'];
$html = &$activityParams['html_message'];

It needs to be:
Code: [Select]
$text = &$activityParams['sms_text_message'];
$html = &$activityParams['html_message'];

Otherwise the message is empty and fails to send.