mozilla/rr — pull request #548 by cgjones (2013-10-24 01:23:49+00:00)
Title: Use exec*p() to launch tracees for convenience and fix *getxattr() suppo...

...rt.

Resolves #37. Resolves #541.

Incidentally has rr handle failed exec()s, which happen with execp(). (libc blindly exec's until one sticks.)

Taking a break from 544 to band-aid this papercut.