timer_test: redirect some output from stderr to stdout

This way we can check the output in timer_test.ok.

Change-Id: Ia3bba1c650be3558d370e0f59d4ee7f36ef97506
diff --git a/tests/timer/timer_test.ok b/tests/timer/timer_test.ok
index 22b93aa..7617bc3 100644
--- a/tests/timer/timer_test.ok
+++ b/tests/timer/timer_test.ok
@@ -1,2 +1,8 @@
 Running timer test for 5 steps
+added 1 timers in step 0 (expired=0)
+added 2 timers in step 1 (expired=0)
+added 4 timers in step 2 (expired=1)
+added 8 timers in step 3 (expired=4)
+added 16 timers in step 4 (expired=7)
+Main timer has finished, please, wait a bit for the final report.
 test over: added=31 expired=31 too_soon=0 too_late=0