Download strategies require a usable name
Download strategies require a usable name

We should handle this case in some predictable way, but until we do,
let's raise a more appropriate exception. It would also be good to get
rid of the duplication here.

gregory-nisbet/brew,rwhogg/brew,reitermarkus/brew,sjackman/homebrew,gregory-nisbet/brew,maxim-belkin/brew,Linuxbrew/brew,konqui/brew,nandub/brew,Homebrew/brew,jmsundar/brew,bfontaine/brew,mahori/brew,muellermartin/dist,vitorgalvao/brew,staticfloat/brew,aw1621107/brew,gordonmcshane/homebrew,mgrimes/brew,Homebrew/brew,rwhogg/brew,pseudocody/brew,DomT4/brew,muellermartin/dist,JCount/brew,Homebrew/brew,JCount/brew,alyssais/brew,mistydemeo/homebrew,JCount/brew,jmsundar/brew,mistydemeo/homebrew,claui/brew,gordonmcshane/homebrew,reitermarkus/brew,AnastasiaSulyagina/brew,tonyg/homebrew,nandub/brew,mgrimes/brew,MikeMcQuaid/brew,DomT4/brew,EricFromCanada/brew,reitermarkus/brew,MikeMcQuaid/brew,konqui/brew,JCount/brew,EricFromCanada/brew,bfontaine/brew,gregory-nisbet/brew,toonetown/homebrew,Linuxbrew/brew,reelsense/brew,ilovezfs/brew,maxim-belkin/brew,reitermarkus/brew,nandub/brew,staticfloat/brew,nandub/brew,claui/brew,palxex/brew,Linuxbrew/brew,claui/brew,muellermartin/dist,claui/brew,DomT4/brew,palxex/brew,Linuxbrew/brew,alyssais/brew,zmwangx/brew,konqui/brew,ilovezfs/brew,bfontaine/brew,jmsundar/brew,sjackman/homebrew,rwhogg/brew,vitorgalvao/brew,sjackman/homebrew,MikeMcQuaid/brew,konqui/brew,tonyg/homebrew,ilovezfs/brew,mahori/brew,Homebrew/brew,palxex/brew,pseudocody/brew,staticfloat/brew,mahori/brew,pseudocody/brew,AnastasiaSulyagina/brew,aw1621107/brew,vitorgalvao/brew,mistydemeo/homebrew,EricFromCanada/brew,gordonmcshane/homebrew,zmwangx/brew,amar-laksh/brew_sudo,amar-laksh/brew_sudo,vitorgalvao/brew,tonyg/homebrew,mgrimes/brew,reelsense/brew,AnastasiaSulyagina/brew,MikeMcQuaid/brew,maxim-belkin/brew,hanxue/linuxbrew,sjackman/homebrew,DomT4/brew,hanxue/linuxbrew,EricFromCanada/brew,amar-laksh/brew_sudo,alyssais/brew,aw1621107/brew,hanxue/linuxbrew,mahori/brew,reelsense/brew,toonetown/homebrew,zmwangx/brew,toonetown/homebrew