Add some missing rpaths
Now that we check that we don't link with system libraries ( https://lab.nexedi.com/nexedi/slapos.core/merge_requests/172 ) we discovered missing rpaths in our executables.
Now that we check that we don't link with system libraries ( https://lab.nexedi.com/nexedi/slapos.core/merge_requests/172 ) we discovered missing rpaths in our executables.