Fixes issues starting on line 292 of functions/jbst-header-functions.php

When installing and attempting to activate this theme, I got the following error:

<code>Parse error: syntax error, unexpected '=', expecting ')' in /Users/garyalmes/Sites/hbmgwp/wpcontent/themes/jbst/functions/jbst-header-functions.php on line 292</code>

This commit solves the issue.