Allow archs_for_command to take Pathnames. Fixes Homebrew/homebrew#1106.
Allow archs_for_command to take Pathnames. Fixes Homebrew/homebrew#1106.

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