bin: Update "log_stream" and "loglevel" handling

* bin/fg21sim: Simplify the "log_stream" assignment
* bin/fg21sim-webui: Also enable debug logging when turning on debug
  flag for the tornado; also update the docstring a little.

2 files changed, 5 insertions, 8 deletions

diff --git a/bin/fg21sim b/bin/fg21sim
index 42bdcca..e605c97 100755
--- a/bin/fg21sim
+++ b/bin/fg21sim
@@ -38,11 +38,7 @@ def main():
               sep="\n", file=sys.stderr)
     check_configs(configs)
 
-    if args.quiet:
-        log_stream = ""
-    else:
-        log_stream = None
-
+    log_stream = "" if args.quiet else None
     setup_logging(dict_config=configs.logging,
                   level=args.loglevel,
                   stream=log_stream,
diff --git a/bin/fg21sim-webui b/bin/fg21sim-webui
index 225aeed..8fc7673 100755
--- a/bin/fg21sim-webui
+++ b/bin/fg21sim-webui
@@ -5,8 +5,8 @@
 # MIT license
 
 """
-Start (and control) the Web user interface (UI) of "fg21sim",
-which is based upon Tornado_ and uses WebSocket_.
+Start (and/or control) the Web user interface (UI) of "fg21sim",
+which is built using the Tornado_ web server and WebSocket_ protocol.
 
 .. _Tornado: http://www.tornadoweb.org/
 
@@ -35,7 +35,8 @@ def main():
                         help="enable Tornado debug mode")
     args = parser.parse_args()
 
-    setup_logging(dict_config=configs.logging)
+    loglevel = "DEBUG" if args.debug else None
+    setup_logging(dict_config=configs.logging, level=loglevel)
     tool = os.path.basename(sys.argv[0])
     logger = logging.getLogger(tool)
     logger.info("COMMAND: {0}".format(" ".join(sys.argv)))