Ben Nemec eedab79f44 Add note to docs about CLI opts and config files
CLI opts can also be read from file, so once an option is registered
for CLI use it doesn't need to be registered again to be usable in
a config file. Add a note in the Registering Options section that
explicitly explains this behavior.

Change-Id: Ib75b5c314b96ec4c46f94e2847016a953433f480
2019-03-12 15:28:16 +00:00
..