This was fixed a few versions back.
But then python-setuptools changed.

The problem is that python scripts installed via setuptools
& pip would have `#!/build_dir_path/staging_dir/target-x86_64_musl-1.1.15/host/bin/python`
as the path in the script, rather than the path on the target (`/usr/bin/python`).

This fixes that.

Signed-off-by: Alexandru Ardelean <ardeleanalex@gmail.com>