+ - Init handler now understands the setting of {ERR_CODE} as
+ more than a boolean success indicator, and also {ERR_STR}.
+ They are now passed back to the client (thanks to recent
+ changes to the YAZ generic front-end server) in accordance
+ with Z39.50 Implementor Agreement 5, found at
+ http://lcweb.loc.gov/z3950/agency/agree/initdiag.html