Update vendor role title in woo pdf voucher

update-role.php

<?php // Do not add this if it's already added.
function woo_vou_change_vendor_role_name() {
	
	//get vendor role
	$vendor_role = get_role( WOO_VOU_VENDOR_ROLE );
	
	if( !empty( $vendor_role ) ) { // if already added vendor role
		
		// first remove vendor role
		remove_role( WOO_VOU_VENDOR_ROLE );
		
		// Now, add vendor role
		$capabilities  = array(
				WOO_VOU_VENDOR_LEVEL	=> true,  // true allows add vendor level
				'read' 			=> true
		);
		add_role( WOO_VOU_VENDOR_ROLE, __( 'Gift Voucher Vendor', 'woovoucher' ), $capabilities );
		
		//get vendor role
		$vendor_role = get_role( WOO_VOU_VENDOR_ROLE );
		
		$vendor_role->add_cap( WOO_VOU_VENDOR_LEVEL );
	}
}

add_action( 'init', 'woo_vou_change_vendor_role_name' );