Returns the rune on the given object, or NULL if it has no rune.
Example: setpr grenade 3 on_rune-test if (rune(%o), (msg_character(%a,'has rune!'),msg_character(%a,'runename: '+name(rune(%o))),return(true)), (msg_character(%a,'not has rune!'),return(true)) ), return(false) @ Result: > make obj 763 You magestically create Water Opal Rune! > rune-test Not has rune! > socket rune grenade The holy grenade glows brightly as the Water Opal Rune is inserted and now feels more powerful! > rune-test Has rune! Runename: Water_Opal rune