Fix block args so they default to nil if not given
Fix block args so they default to nil if not given

gabrielrios/opal,charliesome/opal,Mogztter/opal,gausie/opal,castwide/opal,gausie/opal,opal/opal,Mogztter/opal,domgetter/opal,kachick/opal,iliabylich/opal,Flikofbluelight747/opal,wied03/opal,Mogztter/opal,bbatsov/opal,Ajedi32/opal,kachick/opal,merongivian/opal,jgaskins/opal,c42engineering/opal,bbatsov/opal,Ajedi32/opal,castwide/opal,Mogztter/opal,fazibear/opal,castwide/opal,kachick/opal,opal/opal,suyesh/opal,iliabylich/opal,c42engineering/opal,gausie/opal,Flikofbluelight747/opal,Flikofbluelight747/opal,catprintlabs/opal,opal/opal,gabrielrios/opal,charliesome/opal,fazibear/opal,bbatsov/opal,catprintlabs/opal,jannishuebl/opal,jannishuebl/opal,suyesh/opal,suyesh/opal,merongivian/opal,jgaskins/opal,domgetter/opal,kachick/opal,Ajedi32/opal,iliabylich/opal,jannishuebl/opal,fazibear/opal,opal/opal,wied03/opal,merongivian/opal,gabrielrios/opal,jgaskins/opal,c42engineering/opal,catprintlabs/opal,wied03/opal