refactor: decouple early return commands from AppInit

Cleaned up the init flow to make it more obvious when
the 'exit_status' value will and won't be returned.

This is because it was confusing that `AppInit` was
returning true under two different circumstances:

1) When bitcoind was launched only to retrieve the "-help"
or "-version" information. In this case, the app was
not initialized.

2) When the user triggers a shutdown. In this case,
the app was fully initialized.

0 files changed, 0 insertions, 0 deletions