Realized I'd discovered the answer but never posted. Will need to perform a forum penance for leaving unanswered for so long...
In the file: administrator/components/com_comprofiler/comprofiler.class.php
Search for the following string:
return $this->_sendEmailMSG( $rowTo, $rowFrom, cb_html_entity_decode_all($_CB_framework->getCfg( 'sitename' )).' - '.$sub, $message, false, $mode, $cc, $bcc, $attachment );
And edit accordingly to remove your full sitename and edit:
return $this->_sendEmailMSG( $rowTo, $rowFrom, cb_html_entity_decode_all($_CB_framework->getCfg( '' )).'short site name - '.$sub, $message, false, $mode, $cc, $bcc, $attachment );
Note: Remember your hacking a core file of your installation. Document properly so you remember to reapply the edit the next time you perform an upgrade.