Reduce RAT errors in developer environment due to generated python files

Signed-off-by: Prasanna Santhanam <tsp@apache.org>

tools/marvin/marvin/codegenerator.py

@@ -17,6 +17,7 @@
 
 import xml.dom.minidom
 from optparse import OptionParser
+from textwrap import dedent
 import os
 import sys
 class cmdParameterProperty(object):
@@ -80,6 +81,25 @@ class codeGenerator:
        
         self.cmd = cmd
         self.cmdsName.append(self.cmd.name)
+        license  = """\
+          # Licensed to the Apache Software Foundation (ASF) under one
+          # or more contributor license agreements.  See the NOTICE file
+          # distributed with this work for additional information
+          # regarding copyright ownership.  The ASF licenses this file
+          # to you under the Apache License, Version 2.0 (the
+          # "License"); you may not use this file except in compliance
+          # with the License.  You may obtain a copy of the License at
+          # 
+          #   http://www.apache.org/licenses/LICENSE-2.0
+          # 
+          # Unless required by applicable law or agreed to in writing,
+          # software distributed under the License is distributed on an
+          # "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+          # KIND, either express or implied.  See the License for the
+          # specific language governing permissions and limitations
+          # under the License. 
+          """
+        self.code = dedent(license)
         self.code += "\n"
         self.code += '"""%s"""\n'%self.cmd.desc  
         self.code += 'from baseCmd import *\n'