Merge commit 'refs/top-bases/gcc-uninit' into gcc-uninit

diff --cc lib/libzfs/libzfs_dataset.c
Simple merge

diff --cc module/zfs/arc.c
Simple merge

diff --cc module/zfs/dsl_dataset.c
Simple merge

diff --cc module/zfs/lzjb.c
Simple merge

diff --cc module/zfs/refcount.c
Simple merge

diff --cc module/zfs/spa.c
Simple merge

diff --cc module/zfs/vdev_raidz.c
Simple merge

diff --cc module/zfs/zap_leaf.c
Simple merge

diff --cc module/zfs/zfs_byteswap.c
Simple merge