The rbt and rbt.cmd wrappers for RBTools were referencing an old

script path (Scripts\rbt-script.py). With modern packaging, Windows

scripts are installed as exe files, so this should have been

Scripts\rbt.exe.
Notably, those files use absolute paths that are computed at initial

install time, meaning that they point to our build machine. This is a

larger problem with few good solutions. However, our wrapper scripts

control the environment and work properly, now that we're once again

pointing to the right file.

Made the changes on a Windows machine and ran the scripts. They

successfully ran RBTools.