brew-bundle: clarify path requirements.
brew-bundle: clarify path requirements.

Closes Homebrew/homebrew#24463.

Signed-off-by: Mike McQuaid <a17fed27eaa842282862ff7c1b9c8395a26ac320@mikemcquaid.com>

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