versions: improve performance of rev_list
versions: improve performance of rev_list

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