+
This is equivalent to opt:--log-level=`VERBOSE`.
-opt:--log-level='LVL'::
+opt:-l 'LVL', opt:--log-level='LVL'::
Set the log level of all known Babeltrace loggers to 'LVL'. You
can override the level of a specific logger with a dedicated
log level environment variable. If you don't specify this option,