Free kvs_markers regardless of num_kvs_markers value
Free kvs_markers regardless of num_kvs_markers value

num_kvs_markers does not account for default KVS.
Ensure as part of freeing up the snapshot_markers,
kvs_markers is freed no matter what.

15:08:10 Direct leak of 16 byte(s) in 1 object(s) allocated from:
15:08:10     #0 0x4cde72 in __interceptor_malloc (/home/couchbase/jenkins/workspace/forestdb-addresssanitizer-master/build/forestdb/tests/functional/mvcc_functional_test+0x4cde72)
15:08:10     #1 0x5d4680 in _fdb_kvs_get_snap_info /home/couchbase/jenkins/workspace/forestdb-addresssanitizer-master/forestdb/src/kv_instance.cc:681:57
15:08:10     #2 0x5a6ea8 in fdb_get_all_snap_markers /home/couchbase/jenkins/workspace/forestdb-addresssanitizer-master/forestdb/src/forestdb.cc:7910:22
15:08:10     #3 0x51c645 in rollback_without_seqtree(bool) /home/couchbase/jenkins/workspace/forestdb-addresssanitizer-master/forestdb/tests/functional/mvcc_functional_test.cc:4941:14
15:08:10     #4 0x51f34a in main /home/couchbase/jenkins/workspace/forestdb-addresssanitizer-master/forestdb/tests/functional/mvcc_functional_test.cc:5229:5
15:08:10     #5 0x2b89f64a476c in __libc_start_main /build/buildd/eglibc-2.15/csu/libc-start.c:226

Change-Id: I7ffdfbae3bc41abb065e09472837ff06d5478e0f
Reviewed-on: http://review.couchbase.org/65864
Tested-by: buildbot <80754af91bfb6d1073585b046fe0a474ce868509@couchbase.com>
Reviewed-by: Chiyoung Seo <fcffc23db27b19ee4ebba46695ee6b50e09216a2@couchbase.com>

wurikiji/forestdb,couchbase/forestdb,hisundar/forestdb,couchbase/forestdb,wurikiji/forestdb,hisundar/forestdb