Specify current Xcode to aid issue-diagnosis
Specify current Xcode to aid issue-diagnosis

I saw a ticket with just doctor output and no `brew --config`. This helps.
gregory-nisbet/brew,DomT4/brew,maxim-belkin/brew,konqui/brew,bfontaine/brew,konqui/brew,alyssais/brew,staticfloat/brew,EricFromCanada/brew,nandub/brew,tonyg/homebrew,Homebrew/brew,JCount/brew,rwhogg/brew,muellermartin/dist,gordonmcshane/homebrew,hanxue/linuxbrew,nandub/brew,EricFromCanada/brew,mahori/brew,reelsense/brew,Linuxbrew/brew,reitermarkus/brew,JCount/brew,claui/brew,EricFromCanada/brew,mahori/brew,jmsundar/brew,amar-laksh/brew_sudo,palxex/brew,amar-laksh/brew_sudo,claui/brew,mistydemeo/homebrew,sjackman/homebrew,mgrimes/brew,toonetown/homebrew,MikeMcQuaid/brew,MikeMcQuaid/brew,MikeMcQuaid/brew,sjackman/homebrew,nandub/brew,maxim-belkin/brew,gordonmcshane/homebrew,nandub/brew,ilovezfs/brew,ilovezfs/brew,Linuxbrew/brew,pseudocody/brew,gordonmcshane/homebrew,mgrimes/brew,claui/brew,palxex/brew,Linuxbrew/brew,DomT4/brew,sjackman/homebrew,Homebrew/brew,zmwangx/brew,hanxue/linuxbrew,aw1621107/brew,bfontaine/brew,pseudocody/brew,vitorgalvao/brew,gregory-nisbet/brew,claui/brew,reelsense/brew,AnastasiaSulyagina/brew,vitorgalvao/brew,sjackman/homebrew,MikeMcQuaid/brew,JCount/brew,toonetown/homebrew,konqui/brew,ilovezfs/brew,AnastasiaSulyagina/brew,mahori/brew,rwhogg/brew,JCount/brew,tonyg/homebrew,maxim-belkin/brew,DomT4/brew,zmwangx/brew,rwhogg/brew,hanxue/linuxbrew,staticfloat/brew,muellermartin/dist,reelsense/brew,Homebrew/brew,staticfloat/brew,AnastasiaSulyagina/brew,gregory-nisbet/brew,tonyg/homebrew,mahori/brew,aw1621107/brew,Linuxbrew/brew,reitermarkus/brew,Homebrew/brew,mistydemeo/homebrew,amar-laksh/brew_sudo,jmsundar/brew,mgrimes/brew,DomT4/brew,konqui/brew,reitermarkus/brew,jmsundar/brew,EricFromCanada/brew,palxex/brew,alyssais/brew,alyssais/brew,aw1621107/brew,bfontaine/brew,reitermarkus/brew,toonetown/homebrew,mistydemeo/homebrew,vitorgalvao/brew,pseudocody/brew,zmwangx/brew,muellermartin/dist,vitorgalvao/brew