Pull liblockdep fixes from Ingo Molnar:
"Three liblockdep fixes left over from the v4.2 cycle"
* 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
tools/liblockdep: Use the rbtree header provided by common tools headers
tools/liblockdep: Correct macro for WARN
tools: Restore export.h