Test stdlib/test-bz22786 exits now with unsupported if malloc fails.

The test tries to allocate more than 2^31 bytes which will always fail on s390
as it has maximum 2^31bit of memory.
Before commit 6c3a8a9d868a8deddf0d6dcc785b6d120de90523, this test returned
unsupported if malloc fails.  This patch re enables this behaviour.

Furthermore support_delete_temp_files() failed to remove the temp directory
in this case as it is not empty due to the created symlink.
Thus the creation of the symlink is moved behind malloc.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>

ChangeLog:

	* stdlib/test-bz22786.c (do_test): Return EXIT_UNSUPPORTED
	if malloc fails.

(cherry picked from commit 3bad2358d67d371497079bba4f8eca9c0096f4e2)

1 files changed, 5 insertions, 0 deletions

diff --git a/ChangeLog b/ChangeLog
index 43cc1fbc32..645e6607b2 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2018-08-30  Stefan Liebler  <stli@linux.ibm.com>
+
+	* stdlib/test-bz22786.c (do_test): Return EXIT_UNSUPPORTED
+	if malloc fails.
+
 2018-08-24  Paul Pluzhnikov  <ppluzhnikov@google.com>
 
         [BZ #23400]