Fix clone tests.

Signed-off-by: Garrett Cooper <yanegomi@gmail.com>
diff --git a/testcases/kernel/syscalls/clone/clone07.c b/testcases/kernel/syscalls/clone/clone07.c
index 3e695e0..a23af39 100644
--- a/testcases/kernel/syscalls/clone/clone07.c
+++ b/testcases/kernel/syscalls/clone/clone07.c
@@ -135,6 +135,8 @@
 
 	cleanup();
 
+	tst_exit();
+
 }
 
 /* setup() - performs all ONE TIME setup for this test */