The following logging levels are set according to the combination of
--verbose, --quiet and --debug options:
verbose_level logging level options
0 --quiet ERROR
1 (none) WARNING
2 --verbose INFO
3+ --verbose --verbose DEBUG
or --debug
Logging levels for the requests and iso8601 modules are forced to ERROR.
This is the first step in bp use-logging-not-print
The difference between '--debug' and '--verbose --verbose' is --debug triggers
cliff's exception handling and traceback display.
Change-Id: Ide2233b3316471d279260fb1e7255a6ca2072023
67354f651b