tests/logging: merge both logging_test_{stream,wqueue}.err

Change-Id: I0ff0a6e0d22575047cc00dd822bc94d696171076
diff --git a/tests/testsuite.at b/tests/testsuite.at
index 5da08e5..ca133bb 100644
--- a/tests/testsuite.at
+++ b/tests/testsuite.at
@@ -171,14 +171,14 @@
 AT_SETUP([logging_stream])
 AT_KEYWORDS([logging_stream])
 cat $abs_srcdir/logging/logging_test.ok > expout
-cat $abs_srcdir/logging/logging_test_stream.err > experr
+cat $abs_srcdir/logging/logging_test.err > experr
 AT_CHECK([$abs_top_builddir/tests/logging/logging_test stream], [0], [expout], [experr])
 AT_CLEANUP
 
 AT_SETUP([logging_wqueue])
 AT_KEYWORDS([logging_wqueue])
 cat $abs_srcdir/logging/logging_test.ok > expout
-cat $abs_srcdir/logging/logging_test_wqueue.err > experr
+cat $abs_srcdir/logging/logging_test.err > experr
 AT_CHECK([$abs_top_builddir/tests/logging/logging_test wqueue], [0], [expout], [experr])
 AT_CLEANUP