Minor logging/debug cleanups

This removed the rarely useful cliff command list from the debug output.

Change-Id: I48f22086733acf90e79a6ddac8712734ee2d0b60

Author: Dean Troyer

openstackclient/shell.py

@@ -139,12 +139,11 @@ def configure_logging(self):
             # --debug forces traceback
             self.dump_stack_trace = True
             requests_log.setLevel(logging.DEBUG)
-            cliff_log.setLevel(logging.DEBUG)
         else:
             self.dump_stack_trace = False
             requests_log.setLevel(logging.ERROR)
-            cliff_log.setLevel(logging.ERROR)
 
+        cliff_log.setLevel(logging.ERROR)
         stevedore_log.setLevel(logging.ERROR)
         iso8601_log.setLevel(logging.ERROR)
 
@@ -325,10 +324,7 @@ def prepare_to_run_command(self, cmd):
         return
 
     def clean_up(self, cmd, result, err):
-        self.log.debug('clean_up %s', cmd.__class__.__name__)
-
-        if err:
-            self.log.debug('got an error: %s', err)
+        self.log.debug('clean_up %s: %s', cmd.__class__.__name__, err or '')
 
         # Process collected timing data
         if self.options.timing: