Improve error message on route creation

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Related Issue

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How Has This Been Tested?

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Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.

goKMS/gnmiHandlers/kms/assignForwardingHandler.go

@@ -75,7 +75,7 @@ func (yh *AssignForwardingHandler) Update(c ygot.ValidatedGoStruct, jobs []*gnmi
 			addressPrefix = initiatingKmsAddress.GetHostname()
 		}
 
-		log.Debugf("AssignForwardingHandler - InitiatingKMSAddress was set with the following parameters; NodeId: %s, Hostname: %s, IpAddress: %s, Port: %s", initiatingKmsAddress.GetNodeId(), initiatingKmsAddress.GetHostname(), initiatingKmsAddress.GetIpAddress(), initiatingKmsAddress.GetPort())
+		log.Debugf("AssignForwardingHandler - InitiatingKMSAddress was set with the following parameters: NodeId: %s, Hostname: %s, IpAddress: %s, Port: %d", initiatingKmsAddress.GetNodeId(), initiatingKmsAddress.GetHostname(), initiatingKmsAddress.GetIpAddress(), initiatingKmsAddress.GetPort())
 
 		if addressPrefix != "" {
 			initKMS = &util.RemoteKMS{