Improve dnsbl.js type comments
Improve dnsbl.js type comments

Nothing particularly consequential, just some changes that make it
play better with type checkers.

(I've been toying with flodoc but unfortunately it's not at a point
where it works particularly well...)

TbirdClanWish/Pokemon-Showdown,xCrystal/Pokemon-Showdown,cadaeic/Pokemon-Showdown,AustinXII/Pokemon-Showdown,Bryan-0/Pokemon-Showdown,Mystifi/Exiled,AWailOfATail/Pokemon-Showdown,xCrystal/Pokemon-Showdown,urkerab/Pokemon-Showdown,panpawn/Gold-Server,Lord-Haji/SpacialGaze,xfix/Pokemon-Showdown,sirDonovan/Pokemon-Showdown,HoeenCoder/SpacialGaze,PS-Spectral/Spectral,xfix/Pokemon-Showdown,azum4roll/Pokemon-Showdown,EienSeiryuu/Pokemon-Showdown,Elveman/RPCShowdownServer,AustinXII/Pokemon-Showdown,urkerab/Pokemon-Showdown,jd4564/Pokemon-Showdown,panpawn/Pokemon-Showdown,svivian/Pokemon-Showdown,cadaeic/Pokemon-Showdown,Kokonoe-san/Glacia-PS,jd4564/Pokemon-Showdown,Zarel/Pokemon-Showdown,Mystifi/Exiled,KewlStatics/Alliance,AnaRitaTorres/Pokemon-Showdown,panpawn/Gold-Server,sirDonovan/Pokemon-Showdown,jumbowhales/Pokemon-Showdown,Zarel/Pokemon-Showdown,svivian/Pokemon-Showdown,AnaRitaTorres/Pokemon-Showdown,Enigami/Pokemon-Showdown,danpantry/Pokemon-Showdown,Elveman/RPCShowdownServer,xfix/Pokemon-Showdown,Sora-League/Sora,svivian/Pokemon-Showdown,xCrystal/Pokemon-Showdown,ShowdownHelper/Saffron,AustinXII/Pokemon-Showdown,Bryan-0/Pokemon-Showdown,TbirdClanWish/Pokemon-Showdown,AWailOfATail/Pokemon-Showdown,sirDonovan/Pokemon-Showdown,aakashrajput/Pokemon-Showdown,zek7rom/SpacialGaze,aakashrajput/Pokemon-Showdown,HoeenCoder/SpacialGaze,svivian/Pokemon-Showdown,panpawn/Pokemon-Showdown,zek7rom/SpacialGaze,xfix/Pokemon-Showdown,QuiteQuiet/Pokemon-Showdown,xfix/Pokemon-Showdown,Enigami/Pokemon-Showdown,Zarel/Pokemon-Showdown,svivian/Pokemon-Showdown,DarkSuicune/Pokemon-Showdown,panpawn/Gold-Server,HoeenCoder/SpacialGaze,KewlStatics/Shit,Kokonoe-san/Glacia-PS,danpantry/Pokemon-Showdown,DesoGit/Tsunami_PS,Volcos/SpacialGaze,PS-Spectral/Spectral,Git-Worm/City-PS,Lord-Haji/SpacialGaze,Enigami/Pokemon-Showdown,KewlStatics/Shit,DesoGit/Tsunami_PS,Git-Worm/City-PS,Enigami/Pokemon-Showdown,KewlStatics/Alliance,CreaturePhil/Showdown-Boilerplate,QuiteQuiet/Pokemon-Showdown,azum4roll/Pokemon-Showdown,HoeenCoder/SpacialGaze,Guernouille/Pokemon-Showdown,SolarisFox/Pokemon-Showdown,Sora-League/Sora,Pikachuun/Pokemon-Showdown,ShowdownHelper/Saffron,PS-Spectral/Spectral,SolarisFox/Pokemon-Showdown,CreaturePhil/Showdown-Boilerplate,Sora-League/Sora,jumbowhales/Pokemon-Showdown,jumbowhales/Pokemon-Showdown,Guernouille/Pokemon-Showdown,aakashrajput/Pokemon-Showdown,DarkSuicune/Pokemon-Showdown,Lord-Haji/SpacialGaze,CreaturePhil/Showdown-Boilerplate,DesoGit/Tsunami_PS,EienSeiryuu/Pokemon-Showdown,Pikachuun/Pokemon-Showdown,ShowdownHelper/Saffron,urkerab/Pokemon-Showdown,Volcos/SpacialGaze,QuiteQuiet/Pokemon-Showdown,Mystifi/Exiled,AWailOfATail/Pokemon-Showdown