fixed message

Author: Michael Spector

src/main/resources/com/ruckuswireless/pentaho/protobuf/decode/messages/messages_en_US.properties

@@ -1,6 +1,6 @@
 ProtobufDecodeStep.Init.Error=Error initializing step\: {0}
 ProtobufDecodeStep.Log.OutputRow=Outputting row {0} \: {1}
-ProtobufDecodeStep.Log.FieldNameIsNull=New field name not specified\!
+ProtobufDecodeStep.Log.FieldNameIsNull=Input field name not specified\!
 ProtobufDecodeStep.Log.CouldntFindField=Couldn''t find field ''{0}'' in input stream\!
 ProtobufDecodeStep.Log.FieldNotValid=Input field ''{0}'' is not binary\!
 ProtobufDecodeStep.ErrorInStepRunning=Error running step \: {0}