Add search to secondary nav

functions.php

<?php // do not include

// Add Search to Secondary Nav
add_filter( 'wp_nav_menu_items', 'genesis_search_primary_nav_menu', 10, 2 );
function genesis_search_primary_nav_menu( $menu, stdClass $args ){
  if ( 'primary' != $args->theme_location )
    return $menu;
        if( genesis_get_option( 'nav_extras' ) )
          return $menu;
    $menu .= sprintf( '<li class="search icon menu-item"><i class="fa fa-search"></i></li> <li id="menu-item-4439204" class="custom-search menu-item">%s</li>', __( genesis_search_form( $echo ) ) );
    return $menu;      
}


//* Customize search form input box text
add_filter( 'genesis_search_text', 'sp_search_text' );
function sp_search_text( $text ) {
	return esc_attr( '#hashtag' );
}