Tweak the bash completion script.
Tweak the bash completion script.

* Add --config
* Alphabetize various lists
* Remove some local temp variables

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