update-report: more forceful rename migration.
update-report: more forceful rename migration.

Migrate between different taps and delete relevant subdirectories if
they can be safely. Also, tweak some naming and use utility methods.

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