avoid using numeric severity
avoid using numeric severity

Don't know what else to call this. Basically I find it better to be more
explicit; rather than using "2" to represent "error", let's just say "error".

slugalisk/Rustla2,slugalisk/Rustla2,slugalisk/Rustla2,ILiedAboutCake/Rustla2,ILiedAboutCake/Rustla2,ILiedAboutCake/Rustla2,ILiedAboutCake/Rustla2,slugalisk/Rustla2