doctor: check for ~/.pydistutils.cfg
doctor: check for ~/.pydistutils.cfg

Closes Homebrew/homebrew#12363.

Signed-off-by: Jack Nagel <43386ce32af96f5c56f2a88e458cb94cebee3751@gmail.com>

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