MAPREDUCE-6868. License check for jdiff output files should be ignored. Contributed by Akira Ajisaka.

(cherry picked from commit 945b006fe85473c1bb87830dbbfc1df9051c7bb9)
(cherry picked from commit 0e8beb214d0635730a9e1126f06d67b1803617ff)

hadoop-mapreduce-project/pom.xml

@@ -195,6 +195,7 @@
           <excludes>
             <exclude>.eclipse.templates/</exclude>
             <exclude>lib/jdiff/**</exclude>
+            <exclude>dev-support/jdiff/**</exclude>
           </excludes>
         </configuration>
       </plugin>