intval() on wait_seconds


git-svn-id: svn://oss.dbc.dk/sync_php/php/OpenLibrary/class_lib/trunk@63458 30e9dc4a-7611-4fbc-83ba-eecf79b76bd0
only one arg at yaz_wait()


git-svn-id: svn://oss.dbc.dk/sync_php/php/OpenLibrary/class_lib/trunk@63460 30e9dc4a-7611-4fbc-83ba-eecf79b76bd0