fixed typo causing build break on titan-dist hadoop2

[pluradj]

Attempted to build titan11 branch with mvn clean install -Paurelius-release -Dgpg.skip=true -DskipTests=true and got the following error.

Exception in thread "main" java.lang.IllegalArgumentException: Backend shorthand unknown: /Users/pluradj/src/github/thinkaurelius/titan/titan11/titan-dist/titan-dist-hadoop-2/target/conf/titan-berkeleydb-es.properties
    at com.google.common.base.Preconditions.checkArgument(Preconditions.java:145)
    at com.thinkaurelius.titan.core.TitanFactory.getLocalConfiguration(TitanFactory.java:179)
    at com.thinkaurelius.titan.core.TitanFactory.open(TitanFactory.java:62)
    at com.thinkaurelius.titan.example.GraphOfTheGodsFactory.main(GraphOfTheGodsFactory.java:154)
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO] 
[INFO] Titan: Distributed Graph Database .................. SUCCESS [  0.871 s]
[INFO] Titan-Core: Core Library for Titan ................. SUCCESS [ 16.905 s]
[INFO] Titan-Test: Test Suite for Titan ................... SUCCESS [  7.686 s]
[INFO] Titan-BerkeleyJE: Distributed Graph Database ....... SUCCESS [  1.715 s]
[INFO] Titan-Cassandra: Distributed Graph Database ........ SUCCESS [  3.676 s]
[INFO] Titan-ElasticSearch: Distributed Indexing Support .. SUCCESS [  2.907 s]
[INFO] Titan-HBase: Parent Module ......................... SUCCESS [  0.570 s]
[INFO] Titan-HBase: Version-independent Core .............. SUCCESS [  3.698 s]
[INFO] Titan-HBase: 0.94 Compatibility Shim ............... SUCCESS [  2.604 s]
[INFO] Titan-HBase: 0.96 Compatibility Shim ............... SUCCESS [  3.758 s]
[INFO] Titan-HBase: 0.98 Compatibility Shim ............... SUCCESS [  1.839 s]
[INFO] Titan-HBase: 1.0 Compatibility Shim ................ SUCCESS [  1.984 s]
[INFO] Titan-HBase: Universal binary ...................... SUCCESS [  0.712 s]
[INFO] Titan-Hadoop: Parent Module ........................ SUCCESS [  1.099 s]
[INFO] Titan-Hadoop: Version-independent Core ............. SUCCESS [  9.330 s]
[INFO] Titan-Hadoop: 1.x Compatibility Shim ............... SUCCESS [  3.723 s]
[INFO] Titan-Hadoop: 2.x Compatibility Shim ............... SUCCESS [  4.303 s]
[INFO] Titan-Hadoop: Universal binary ..................... SUCCESS [  0.594 s]
[INFO] Titan-Lucene: Indexing Support ..................... SUCCESS [  1.587 s]
[INFO] Titan-All: Complete Titan Distribution ............. SUCCESS [  2.467 s]
[INFO] Titan-Solr: Distributed Indexing Support ........... SUCCESS [  3.239 s]
[INFO] Titan-Dist: Tar and Zip Archives ................... SUCCESS [ 17.202 s]
[INFO] Titan-Dist: Archive with Hadoop 2 .................. FAILURE [  1.374 s]
[INFO] Titan-Doc: AsciiDoc Manual for Titan ............... SKIPPED
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 01:34 min
[INFO] Finished at: 2015-12-17T14:00:56-05:00
[INFO] Final Memory: 196M/1491M
[INFO] ------------------------------------------------------------------------

Fix was to use the correct properties file name.

[ghost]

This is the same pull request that I submitted here: #1218 in File 14

[dalaro]

Thanks, this is perfect. Merged.