facebook/rocksdb — pull request #156 by Chilledheart (2014-05-21 12:32:07+00:00)
Title: Print pthread_t in a more safe way

I hope this patch will fix the bug i mentioned in #155.

[1] [How to print pthread_t](http://stackoverflow.com/questions/1759794/how-to-print-pthread-t#answer-1759846)