Check CLI tools installed by libxcrun.dylib instead of `xcode-select -p`
Check CLI tools installed by libxcrun.dylib instead of `xcode-select -p`

- Success of `xcode-select -p` command will be true if any Xcode.app
  is installed, or an alternate Xcode.app version has been selected,
  even if CLI tools have never been installed
- More details:
  https://macops.ca/developer-binaries-on-os-x-xcode-select-and-xcrun

neonichu/xcode-install,KrauseFx/xcode-install,sirlantis/xcode-install