doctor: Fix typo in uncommitted modifications warning message
doctor: Fix typo in uncommitted modifications warning message

Closes Homebrew/homebrew#45443.

Signed-off-by: Baptiste Fontaine <bfee279af59f3e3f71f7ce1fa037ea7b90f93cbf@yahoo.fr>

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