audit: check more unscoped test calls.
audit: check more unscoped test calls.

Also check `def test`, `shell_output`, `pipe_output` and method calls
using parentheses.

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