* Removed -HUP so the default -TERM signal is sent instead.
- hyperiond only listens for TERM and INT. HUP is often used to get an exe to reread its config
Changed pgrep to add '-x' so it wont partial match on the exe name.
- I have multiple instances with multiple hyperiond-instance1 names
- this ensures the service script only kills the right process
* reversing errant change to hyperion.systemd.sh
Former-commit-id: 7df14c9ab31bd808df7f286a8db89de3ac7d18bd