Add missing license header to a log4j file

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1161478 13f79535-47bb-0310-9956-ffa450edef68

src/scratchpad/testcases/log4j.properties

@@ -1,3 +1,18 @@
+# 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.
+
 log4j.rootLogger=ALL,CONSOLE
 
 log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender