Add repair_test to make check

Summary:
needed so we can proactively find issues like #1858
Closes https://github.com/facebook/rocksdb/pull/1862

Differential Revision: D4545854

Pulled By: ajkr

fbshipit-source-id: d77fcb7

Makefile

@@ -422,6 +422,7 @@ TESTS = \
 	range_del_aggregator_test \
 	lru_cache_test \
 	object_registry_test \
+	repair_test \
 
 PARALLEL_TEST = \
 	backupable_db_test \