doctor: fix typo
doctor: fix typo

Fixes Homebrew/homebrew#45623.

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