Fixed typo
Fixed typo

- no idea why that wasn't found by RPython, and where it is coming from

Signed-off-by: Stefan Marr <46f1a0bd5592a2f9244ca321b129902a06b53e03@stefan-marr.de>

SOM-st/RTruffleSOM,smarr/RTruffleSOM,SOM-st/PySOM,smarr/PySOM,smarr/PySOM,smarr/RTruffleSOM,SOM-st/RPySOM,SOM-st/PySOM,SOM-st/RPySOM,SOM-st/RTruffleSOM