fix exception description #1807
fix exception description #1807

AraHaanOrg/aiohttp,KeepSafe/aiohttp,arthurdarcet/aiohttp,KeepSafe/aiohttp,pfreixes/aiohttp,arthurdarcet/aiohttp,AraHaanOrg/aiohttp,playpauseandstop/aiohttp,rutsky/aiohttp,KeepSafe/aiohttp,juliatem/aiohttp,arthurdarcet/aiohttp,rutsky/aiohttp,hellysmile/aiohttp,hellysmile/aiohttp,juliatem/aiohttp,pfreixes/aiohttp,rutsky/aiohttp,Eyepea/aiohttp