Update udocker.py
Created by: mkopsnc
At some systems '--delay-directory-restore' is not available. In that case, import of the exported image ends up with:
Error: failed to extract container: image.tar Error: loading failed
After looking into udocker.py it turned out that issue is here:
tar: unrecognized option --delay-directory-restore' Try
tar --help' or `tar --usage' for more information.