caveats: check if plist is a symlink.
caveats: check if plist is a symlink.

Avoid problems like Homebrew/homebrew#32367.

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