formula: don't print verify message, use resource.
formula: don't print verify message, use resource.

See discussion:
https://github.com/mxcl/homebrew/commit/81d420492c4be9278fcf26d5bef21625d0abf32a#commitcomment-4804596
tonyg/homebrew,aw1621107/brew,zmwangx/brew,alyssais/brew,palxex/brew,reelsense/brew,mistydemeo/homebrew,aw1621107/brew,MikeMcQuaid/brew,rwhogg/brew,gordonmcshane/homebrew,MikeMcQuaid/brew,nandub/brew,rwhogg/brew,toonetown/homebrew,ilovezfs/brew,mistydemeo/homebrew,nandub/brew,aw1621107/brew,jmsundar/brew,toonetown/homebrew,EricFromCanada/brew,Linuxbrew/brew,bfontaine/brew,EricFromCanada/brew,reitermarkus/brew,JCount/brew,konqui/brew,ilovezfs/brew,staticfloat/brew,konqui/brew,DomT4/brew,konqui/brew,pseudocody/brew,mgrimes/brew,sjackman/homebrew,gregory-nisbet/brew,DomT4/brew,Linuxbrew/brew,ilovezfs/brew,vitorgalvao/brew,DomT4/brew,gordonmcshane/homebrew,MikeMcQuaid/brew,mistydemeo/homebrew,tonyg/homebrew,Homebrew/brew,reitermarkus/brew,bfontaine/brew,sjackman/homebrew,hanxue/linuxbrew,staticfloat/brew,sjackman/homebrew,zmwangx/brew,jmsundar/brew,mahori/brew,alyssais/brew,gregory-nisbet/brew,AnastasiaSulyagina/brew,gregory-nisbet/brew,Homebrew/brew,hanxue/linuxbrew,tonyg/homebrew,claui/brew,reitermarkus/brew,claui/brew,bfontaine/brew,Homebrew/brew,amar-laksh/brew_sudo,maxim-belkin/brew,EricFromCanada/brew,reitermarkus/brew,konqui/brew,amar-laksh/brew_sudo,DomT4/brew,palxex/brew,Linuxbrew/brew,jmsundar/brew,pseudocody/brew,AnastasiaSulyagina/brew,claui/brew,palxex/brew,nandub/brew,reelsense/brew,gordonmcshane/homebrew,zmwangx/brew,mahori/brew,mahori/brew,muellermartin/dist,nandub/brew,JCount/brew,vitorgalvao/brew,muellermartin/dist,alyssais/brew,staticfloat/brew,mahori/brew,JCount/brew,JCount/brew,toonetown/homebrew,hanxue/linuxbrew,pseudocody/brew,claui/brew,maxim-belkin/brew,vitorgalvao/brew,mgrimes/brew,reelsense/brew,amar-laksh/brew_sudo,Homebrew/brew,Linuxbrew/brew,AnastasiaSulyagina/brew,vitorgalvao/brew,rwhogg/brew,maxim-belkin/brew,muellermartin/dist,MikeMcQuaid/brew,sjackman/homebrew,mgrimes/brew,EricFromCanada/brew