since upgrading to macOS Sierra

Of course I need to re-install Command Line Developer Tools without XCode, same after every upgrade.

Robs-MBP:themadkatter rl$ git pull orgin master
xcrun: error: invalid active developer path (/Library/Developer/CommandLineTools), missing xcrun at: /Library/Developer/CommandLineTools/usr/bin/xcrun
Robs-MBP:themadkatter rl$ xcode-select --install
xcode-select: note: install requested for command line developer tools