Is there a way to choose what to display in the [ms-membership-logout] shortcode?

I'm changing line 433 of class-ms-view-shortcode-login.php from:
ucfirst( $member->name )

to

$member->username

Since $member->name use's wordpress's nicename which is not necessary here. The way the line is currently written, if you have special characters (@) they do not display properly.