Don't version VCS checkout directories.
Don't version VCS checkout directories.

While tarballs are versioned to prevent conflicts when newer ones are downloaded,
we shouldn't be versioning the name of the VCS checkout when a formula uses
"HEAD" or a stable commit.

Append the name of the vcs system to the checkout path, in case a project changes
vcs providers, to prevent future conflicts.

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