Handle read(n) returning nil
Handle read(n) returning nil

Fixes Homebrew/homebrew#33090.

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