rubocops/lines: fix rule.
rubocops/lines: fix rule.

This stops stuff like `clang=1` from being matched incorrectly.

sjackman/homebrew,Homebrew/brew,Homebrew/brew,nandub/brew,mahori/brew,claui/brew,vitorgalvao/brew,konqui/brew,sjackman/homebrew,Homebrew/brew,sjackman/homebrew,konqui/brew,EricFromCanada/brew,konqui/brew,reitermarkus/brew,EricFromCanada/brew,EricFromCanada/brew,mahori/brew,claui/brew,mahori/brew,nandub/brew,JCount/brew,reitermarkus/brew,JCount/brew,reitermarkus/brew,EricFromCanada/brew,JCount/brew,sjackman/homebrew,MikeMcQuaid/brew,nandub/brew,MikeMcQuaid/brew,vitorgalvao/brew,vitorgalvao/brew,claui/brew,konqui/brew,MikeMcQuaid/brew,reitermarkus/brew,nandub/brew,MikeMcQuaid/brew,mahori/brew,Homebrew/brew,claui/brew,vitorgalvao/brew,JCount/brew