Version 4.5.9 of mod_wsgi can be obtained from:
https://codeload.github.com/GrahamDumpleton/mod_wsgi/tar.gz/4.5.9
Revert apachectl script generated by mod_wsgi-express back to using /bin/bash as /bin/sh on some Linux systems lacking ability to do exec -a.
apachectl
mod_wsgi-express
/bin/bash
/bin/sh
exec -a