Duplicate Apache RAT exclusions in the <reporting> section.

This follows an issue raised by Rob Tompkins for 1.14-RC1 that the RAT
report on the site contained an unlicensed file.

Author: aherbert

pom.xml

@@ -343,6 +343,17 @@ limitations under the License.
   </build>
   <reporting>
     <plugins>
+      <plugin>
+        <groupId>org.apache.rat</groupId>
+        <artifactId>apache-rat-plugin</artifactId>
+        <configuration>
+          <excludes>
+            <exclude>src/test/resources/bla.tar.xz</exclude>
+            <exclude>src/test/resources/empty.bin</exclude>
+            <exclude>src/test/resources/small.bin</exclude>
+          </excludes>
+        </configuration>
+      </plugin>
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-checkstyle-plugin</artifactId>