drd: Avoid reporting false positive race reports inside pthread_join().

Note: I haven't analyzed yet since which commit these false positives
started to appear but it's most likely a commit applied after the 3.6
release.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@12003 a5019735-40e9-0310-863c-91ae7b9d1cf9
1 file changed