'brew cleanup' no longer complains about single versions
'brew cleanup' no longer complains about single versions

Previously "brew cleanup" would complain if the most recent
version of a brew wasn't installed.

We now suppress this message if only one (outdated) formula is
present.

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