MEDIUM: mworker-prog: implements 'option start-on-reload'

This option is already the default, but its opposite 'no option
start-on-reload' allows the master to keep a previous instance of a
program and don't start a new one upon a reload.

The old program will then appear as a current one in "show proc" and
could also trigger an exit-on-failure upon a segfault.
2 files changed