John Maguire 2b3acb2ba8 Add missing header for _exit()
Fixes #4188

(cherry picked from commit acfc7e6d2196f9ecb080b5405cd78066734bbc39)
2014-04-22 14:25:53 +02:00
..
2014-04-22 14:25:38 +02:00
2014-04-22 14:25:53 +02:00