brew-config: show realpath for pyenv and rbenv
brew-config: show realpath for pyenv and rbenv

Closes Homebrew/homebrew#35819.

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

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