Add Display Job Categories Shortcode for a single listing

functions.php

function dm_display_wpjm_single_categories () {
    $terms = wp_get_post_terms( get_the_ID(), 'job_listing_category' );
    if ( ! empty( $terms ) && ! is_wp_error( $terms ) ){
        echo '<ul>';
        foreach ( $terms as $term ) {
            echo '<li>' . '<a href="' . esc_url( get_term_link( $term ) ) . '">' . $term->name . '</a></li>';
        }
        echo '</ul>';
    }
}
add_shortcode('list_categories_single', 'dm_display_wpjm_single_categories');
add_theme_support( 'job-manager-templates' );

Automattic/WP-Job-Manager#1662

@davoraltman should return the value, or wrap with ob_start and ob_end_XXX