development_tools: fix LLVM Clang 10+ version detection
development_tools: fix LLVM Clang 10+ version detection

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