brew: pass through `TRAVIS_` variables.
brew: pass through `TRAVIS_` variables.

reitermarkus/brew,EricFromCanada/brew,claui/brew,alyssais/brew,JCount/brew,MikeMcQuaid/brew,vitorgalvao/brew,MikeMcQuaid/brew,EricFromCanada/brew,JCount/brew,EricFromCanada/brew,sjackman/homebrew,JCount/brew,EricFromCanada/brew,konqui/brew,maxim-belkin/brew,hanxue/linuxbrew,Linuxbrew/brew,hanxue/linuxbrew,Homebrew/brew,konqui/brew,nandub/brew,mahori/brew,claui/brew,claui/brew,maxim-belkin/brew,alyssais/brew,sjackman/homebrew,nandub/brew,mgrimes/brew,reitermarkus/brew,nandub/brew,MikeMcQuaid/brew,JCount/brew,Linuxbrew/brew,mgrimes/brew,Homebrew/brew,konqui/brew,DomT4/brew,ilovezfs/brew,MikeMcQuaid/brew,nandub/brew,reitermarkus/brew,Linuxbrew/brew,alyssais/brew,vitorgalvao/brew,maxim-belkin/brew,mgrimes/brew,hanxue/linuxbrew,ilovezfs/brew,konqui/brew,mahori/brew,mahori/brew,mahori/brew,sjackman/homebrew,Homebrew/brew,vitorgalvao/brew,DomT4/brew,DomT4/brew,DomT4/brew,ilovezfs/brew,claui/brew,sjackman/homebrew,Homebrew/brew,reitermarkus/brew,vitorgalvao/brew,Linuxbrew/brew