Improve millisecond logging

Always display 3 digits for milliseconds (appends 0s)
Based on I3f1461839258be0723e2d3616ec225a830d13029

Change-Id: I48b3f3781b4d34ed6a5fb9e4e78cee919afda6c1
diff --git a/lib/cinder b/lib/cinder
index 5f4f979..014fefa 100644
--- a/lib/cinder
+++ b/lib/cinder
@@ -193,10 +193,10 @@
 
     if [ "$LOG_COLOR" == "True" ] && [ "$SYSLOG" == "False" ]; then
         # Add color to logging output
-        iniset $CINDER_CONF DEFAULT logging_context_format_string "%(asctime)s.%(msecs)d %(color)s%(levelname)s %(name)s [%(request_id)s %(user_id)s %(project_id)s%(color)s] %(instance)s%(color)s%(message)s"
-        iniset $CINDER_CONF DEFAULT logging_default_format_string "%(asctime)s.%(msecs)d %(color)s%(levelname)s %(name)s [-%(color)s] %(instance)s%(color)s%(message)s"
+        iniset $CINDER_CONF DEFAULT logging_context_format_string "%(asctime)s.%(msecs)03d %(color)s%(levelname)s %(name)s [%(request_id)s %(user_id)s %(project_id)s%(color)s] %(instance)s%(color)s%(message)s"
+        iniset $CINDER_CONF DEFAULT logging_default_format_string "%(asctime)s.%(msecs)03d %(color)s%(levelname)s %(name)s [-%(color)s] %(instance)s%(color)s%(message)s"
         iniset $CINDER_CONF DEFAULT logging_debug_format_suffix "from (pid=%(process)d) %(funcName)s %(pathname)s:%(lineno)d"
-        iniset $CINDER_CONF DEFAULT logging_exception_prefix "%(color)s%(asctime)s.%(msecs)d TRACE %(name)s %(instance)s"
+        iniset $CINDER_CONF DEFAULT logging_exception_prefix "%(color)s%(asctime)s.%(msecs)03d TRACE %(name)s %(instance)s"
     fi
 
     if [ "$CINDER_DRIVER" == "XenAPINFS" ]; then