[Bug-Fix]: Remove ability to put incorrect kwargs for an exception

Also, this patch simplify `format_message` method of base
Rally exception class

Change-Id: Ia6ccd68bb7740ea43402e633017684d4df8c07fe
Closes-Bug: #1491388

etc/rally/rally.conf.sample

@@ -47,8 +47,9 @@
 
 # (Optional) Enables or disables syslog rfc5424 format for logging. If
 # enabled, prefixes the MSG part of the syslog message with APP-NAME
-# (RFC5424). The format without the APP-NAME is deprecated in K, and
-# will be removed in M, along with this option. (boolean value)
+# (RFC5424). The format without the APP-NAME is deprecated in Kilo,
+# and will be removed in Mitaka, along with this option. (boolean
+# value)
 # This option is deprecated for removal.
 # Its value may be silently ignored in the future.
 #use_syslog_rfc_format = true
@@ -98,9 +99,6 @@
 # quiet. (boolean value)
 #rally_debug = false
 
-# make exception message format errors fatal (boolean value)
-#fatal_exception_format_errors = false
-
 # HTTP timeout for any of OpenStack service in seconds (floating point
 # value)
 #openstack_client_http_timeout = 180.0

tests/unit/plugins/openstack/wrappers/test_network.py

@@ -141,7 +141,7 @@ class NovaNetworkWrapperTestCase(test.TestCase):
         def get_fip(*args, **kwargs):
             for i in fip_found:
                 return "fip_id"
-            raise exceptions.GetResourceNotFound
+            raise exceptions.GetResourceNotFound(resource="")
         wrap._get_floating_ip = mock.Mock(side_effect=get_fip)
 
         wrap.delete_floating_ip("fip_id")