ruby_mach: Update cputype case block.
ruby_mach: Update cputype case block.

MachOFile#cputype now returns a Symbol.

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