Make `timestamped_versions` return an array of strings.
Make `timestamped_versions` return an array of strings.

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