Tell the user from where logging configurations are loaded from if
the QT_LOGGING_DEBUG environment variable is set. This allows 'debugging'
of the logging rules database, because it's very simple to e.g. silence
all debug messages by adding a logging configuration file somewhere, and
forget about it.
Change-Id: Iee34031d531462060b5603e2210e01fd40952c63
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Reviewed-by: Jerome Pasion <jerome.pasion@digia.com>
Reviewed-by: Alex Blasche <alexander.blasche@digia.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>