/*
 * Return the hostname of a Fam::Event object.
 *
 * Note: some versions of FAM (ex. the Debian package) ship without
 * remote support.  In those instances, this method will always return
 * "localhost".
 *
 * Aliases:
 *   Fam::Event#host
 *
 * Examples:
 *   host = ev.hostname
 *   host = ev.host
 *
 */
static VALUE fam_ev_host(VALUE self) {