brew-fetch: Return error code on unmatched hash.
brew-fetch: Return error code on unmatched hash.

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