> Where is the./scripts/switch_submodules_to_head_and_clean
> script--that I can customize for my personal use--located?  The only
> copy of this script that I have found so far is part of the download
> itself.
> 
> I assumed that the script resides in the repository and that
> my script calls it from the repository location.

The script won't exist until the repository has been cloned locally. Thereafter the script will be in $LOCAL_GIT_DIR/scripts.

Darrell