fix bad signal arity
fix bad signal arity

flycutter/grit,HrishikeshSingh/testmodulerepo,rgroux/grit,brynary/grit,thommay/grit,rgroux/grit,gitlabhq/grit,kevinsawicki/grit,gitcafe-dev/grit,github/grit,isabanin/grit,isabanin/grit,renatoramiro/grit,kevinsawicki/grit,gitlabhq/grit,mojombo/grit,patientslikeme/grit,flycutter/grit,abicky/grit,HrishikeshSingh/testmodulerepo,brynary/grit,thommay/grit,gitcafe-dev/grit,redronin/grit