I made a change to the language text used in the following function in my client's WordPress website's theme function file and now a 500 error is being thrown and the following error is logged in the server log. PHP Parse error: syntax error, unexpected 'd' (T_STRING). The error is being reported on line 145, which is the $args['title_reply'] bit. The text changes I made were to the "Share" text. I am not sure what could be causing the error, as nothing is standing out visually. I have tried deleting, then retyping all of the function, but that failed to work. Maybe fresh eyes can spot the culprit.
add_filter( 'genesis_comment_for_args', 'bourncreative_comment_form_header' );
function bourncreative_comment_form_header($args) {
$args['title_reply'] = '<h3>Share Your Comments & Feedback:</h3>';
return $args;
}