posix: Call _exit in failure case for posix_spawn{p} (BZ#20178)

This patch call _exit instead of exit in failure case for the spawned
child in Linux posix_spawn{p} implementation.

Tested on x86_64.

	[BZ #20178]
	* sysdeps/unix/sysv/linux/spawni.c (__spawni_child): Call _exit
	on failure instead of exit.

1 files changed, 6 insertions, 0 deletions

diff --git a/ChangeLog b/ChangeLog
index 042fb893e2..a33eca3c77 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2016-05-30  Adhemerval Zanella  <adhemerval.zanella@linaro.org>
+
+	[BZ #20178]
+	* sysdeps/unix/sysv/linux/spawni.c (__spawni_child): Call _exit
+	on failure instead of exit.
+
 2016-05-30  Roland McGrath  <roland@hack.frob.com>
 
 	[BZ #3629]