Use `safe_system` instead of `Utils.popen_read`.
Use `safe_system` instead of `Utils.popen_read`.

claui/brew,Homebrew/brew,reitermarkus/brew,EricFromCanada/brew,konqui/brew,mahori/brew,claui/brew,JCount/brew,claui/brew,ilovezfs/brew,reitermarkus/brew,Homebrew/brew,mahori/brew,reitermarkus/brew,mahori/brew,nandub/brew,sjackman/homebrew,MikeMcQuaid/brew,konqui/brew,Linuxbrew/brew,claui/brew,maxim-belkin/brew,nandub/brew,JCount/brew,Linuxbrew/brew,MikeMcQuaid/brew,DomT4/brew,sjackman/homebrew,konqui/brew,mahori/brew,nandub/brew,ilovezfs/brew,DomT4/brew,ilovezfs/brew,DomT4/brew,JCount/brew,Homebrew/brew,mgrimes/brew,MikeMcQuaid/brew,maxim-belkin/brew,sjackman/homebrew,MikeMcQuaid/brew,mgrimes/brew,vitorgalvao/brew,vitorgalvao/brew,nandub/brew,mgrimes/brew,EricFromCanada/brew,Linuxbrew/brew,vitorgalvao/brew,vitorgalvao/brew,konqui/brew,maxim-belkin/brew,EricFromCanada/brew,sjackman/homebrew,DomT4/brew,JCount/brew,Linuxbrew/brew,Homebrew/brew,EricFromCanada/brew,reitermarkus/brew