array_merge warning in issue.inc

I think line 256 in issue.inc needs to be changed from:

$categories = array_merge(t(''), project_issue_category(0, 0));

to:

$categories = array_merge(array(t('')), project_issue_category(0, 0));

Otherwise I get these warnings when running on php5:

warning: array_merge() [function.array-merge]: Argument #1 is not an array in /www/h/hogbay/htdocs/youform/modules/project/issue.inc on line 256.
warning: Invalid argument supplied for foreach() in /www/h/hogbay/htdocs/youform/includes/common.inc on line 1308.

Thanks,
Jesse