Style and conformance changes.

1. Strip all leading space.
2. Move tst_exit() to main().
3. Remove tst_exit() from cleanup().
4. Remove cluebat comments.
5. Reduce some unnecessary whitespace.

Signed-off-by: Garrett Cooper <yanegomi@gmail.com>
diff --git a/testcases/kernel/containers/pidns/pidns30.c b/testcases/kernel/containers/pidns/pidns30.c
index 5975b53..293fc4d 100644
--- a/testcases/kernel/containers/pidns/pidns30.c
+++ b/testcases/kernel/containers/pidns/pidns30.c
@@ -191,7 +191,6 @@
 	mq_receive((mqd_t)si->si_int, buf, attr.mq_msgsize, NULL);
 }
 
-
 /*
  * child_fn() - Inside container
  */
@@ -339,6 +338,5 @@
 
 	cleanup_mqueue(result, F_STEP_3, mqd);
 
-	/* NOT REACHED */
-	return 0;
-}    /* End main */
+	tst_exit();
+}
\ No newline at end of file