[3/3] FLUME-1554. FileChannel fails to build on machines with old protocol buffer compiler.

[mpercy]

http://git-wip-us.apache.org/repos/asf/flume/blob/8f77db07/flume-ng-channels/flume-file-channel/src/main/proto/filechannel.proto
----------------------------------------------------------------------
diff --git 
a/flume-ng-channels/flume-file-channel/src/main/proto/filechannel.proto 
b/flume-ng-channels/flume-file-channel/src/main/proto/filechannel.proto
index 59dc8db..3a4e828 100644
--- a/flume-ng-channels/flume-file-channel/src/main/proto/filechannel.proto
+++ b/flume-ng-channels/flume-file-channel/src/main/proto/filechannel.proto
@@ -16,7 +16,7 @@
  * specific language governing permissions and limitations
  * under the License.
  */
-option java_package = "org.apache.flume.chanel.file.proto";
+option java_package = "org.apache.flume.channel.file.proto";
 option java_outer_classname = "ProtosFactory";
 
 message Checkpoint {