Fix a small warning in eunit_SUITE
Fix a small warning in eunit_SUITE

LineMetrics/cowboy,paulperegud/cowboy,binarin/cowboy,essen/cowboy,cad627/cowboy,rabbitmq/cowboy,K2InformaticsGmbH/cowboy,ninenines/cowboy,rbalint/pkg-erlang-cowboy,callsign-core/cowboy_hybi00,CrankWheel/cowboy,odo/cowboy,manastech/cowboy,acrispin/cowboy,unisontech/cowboy,omusico/cowboy,lpgauth/cowboy,LineMetrics/cowboy,hairyhum/cowboy,piboye/cowboy,venkateshreddy/cowboy,heroku/cowboy,pap/cowboy,Reimerei/cowboy,piboye/cowboy,heroku/cowboy,turtleDeng/cowboy,LineMetrics/cowboy,dangjun625/cowboy,276361270/cowboy,essen/cowboy,cad627/cowboy,linearregression/cowboyku,bsmr-erlang/cowboy,kivra/cowboy,sile/cowboy,heroku/cowboyku,imdeps/cowboy,yangchengjian/cowboy,lpgauth/cowboy,nviennot/cowboy,manastech/cowboy,ferd/cowboyku,unisontech/cowboy,noname007/cowboy,layerhq/cowboy,yangchengjian/cowboy,MSch/cowboy,grahamrhay/cowboy,binarin/cowboy,bobos/ecweb,callsign-core/cowboy_hybi00,layerhq/cowboy