Fix documentation comment
Fix documentation comment

jspahrsummers/libextc,sanojnambiar/libextobjc,telly/libextobjc,KBvsMJ/libextobjc,jspahrsummers/libextc,jspahrsummers/libextc,WPDreamMelody/libextobjc,sandyway/libextobjc,jiakai-lian/libextobjc,kolyuchiy/libextobjc,liuruxian/libextobjc,bboyesc/libextobjc,sunfei/libextobjc,goodheart/libextobjc