travis.yml: retry git fetch.
travis.yml: retry git fetch.

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