Adjust exception message in l3 agent

Bug 1159856

Change-Id: I8d30fd50d46677fc112fe4d8406b849cbb8ef225

diff --git a/quantum/agent/l3_agent.py b/quantum/agent/l3_agent.py
index 0464bc4e12dc9735ff41f28a2fc683e3df70319c..cda37203ababcd20c043e7e70d425df11248a16d 100644 (file)
--- a/quantum/agent/l3_agent.py
+++ b/quantum/agent/l3_agent.py
@@ -218,8 +218,9 @@ class L3NATAgent(manager.Manager):
         except rpc_common.RemoteError as e:
             if e.exc_type == 'TooManyExternalNetworks':
                 msg = _(
-                    "The 'gateway_external_network_id' must be configured"
-                    " if Quantum has more than one external network.")
+                    "The 'gateway_external_network_id' option must be "
+                    "configured for this agent as Quantum has more than "
+                    "one external network.")
                 raise Exception(msg)
             else:
                 raise