examples/ebnf2.ebnf not parsed as iso-ebnf

[aDotInTheVoid]

$ ./build/bin/kgt -e rrutf8 -l iso-ebnf < examples/ebnf2.ebnf
$ echo $?
1

I'm not sure if this their is a different dialect this is suposed to be, or if it needs to be moved to iso-ebnf.