6489714 JNI: getDataset() returns null for pool snapshot name

[tom.erick...@sun.com]

Author: tomee
Repository: /hg/onnv/onnv-gate
Revision: c399ee70560ee5c4120de41eb5e5a9b0a7d341c6
Log message:
6489714 JNI: getDataset() returns null for pool snapshot name

Files:
        update: usr/src/lib/libzfs_jni/common/libzfs_jni_dataset.c