tests: trau_sync: Explicitly drop category from log

Let's disable hex category here since we don't care about its formatting here.

In any case, every test relying on logging output validation should
always explicitly state the config to avoid issues in the future if
default values change.

Related: OS#5034
Change-Id: I332d1215fc7784a6647b90e2eb8b1efcd644002e
diff --git a/tests/trau_sync/trau_sync_test.c b/tests/trau_sync/trau_sync_test.c
index d804b3e..88b5c6d 100644
--- a/tests/trau_sync/trau_sync_test.c
+++ b/tests/trau_sync/trau_sync_test.c
@@ -82,5 +82,7 @@
 	log_set_use_color(osmo_stderr_target, 0);
 	osmo_fsm_log_addr(false);
 	log_set_print_filename2(osmo_stderr_target, LOG_FILENAME_NONE);
+	log_set_print_category(osmo_stderr_target, 0);
+	log_set_print_category_hex(osmo_stderr_target, 0);
 	test_body();
 }
diff --git a/tests/trau_sync/trau_sync_test.err b/tests/trau_sync/trau_sync_test.err
index 7e4a24a..7871054 100644
--- a/tests/trau_sync/trau_sync_test.err
+++ b/tests/trau_sync/trau_sync_test.err
@@ -1,14 +1,14 @@
-<0000> trau_sync(test){WAIT_FRAME_ALIGN}: Allocated
-<0000> trau_sync(test){WAIT_FRAME_ALIGN}: Received Event RX_BITS
-<0000> trau_sync(test){WAIT_FRAME_ALIGN}: Received Event RX_BITS
-<0000> trau_sync(test){WAIT_FRAME_ALIGN}: Received Event RX_BITS
-<0000> trau_sync(test){WAIT_FRAME_ALIGN}: state_chg to FRAME_ALIGNED
-<0000> trau_sync(test){FRAME_ALIGNED}: Received Event RX_BITS
-<0000> trau_sync(test){FRAME_ALIGNED}: Received Event RX_BITS
-<0000> trau_sync(test){FRAME_ALIGNED}: Received Event RX_BITS
-<0000> trau_sync(test){FRAME_ALIGNED}: Received Event RX_BITS
-<0000> trau_sync(test){FRAME_ALIGNED}: Received Event RX_BITS
-<0000> trau_sync(test){FRAME_ALIGNED}: Received Event RX_BITS
-<0000> trau_sync(test){FRAME_ALIGNED}: Received Event RX_BITS
-<0000> trau_sync(test){FRAME_ALIGNED}: state_chg to FRAME_ALIGNMENT_LOST
-<0000> trau_sync(test){FRAME_ALIGNMENT_LOST}: Received Event RX_BITS
+trau_sync(test){WAIT_FRAME_ALIGN}: Allocated
+trau_sync(test){WAIT_FRAME_ALIGN}: Received Event RX_BITS
+trau_sync(test){WAIT_FRAME_ALIGN}: Received Event RX_BITS
+trau_sync(test){WAIT_FRAME_ALIGN}: Received Event RX_BITS
+trau_sync(test){WAIT_FRAME_ALIGN}: state_chg to FRAME_ALIGNED
+trau_sync(test){FRAME_ALIGNED}: Received Event RX_BITS
+trau_sync(test){FRAME_ALIGNED}: Received Event RX_BITS
+trau_sync(test){FRAME_ALIGNED}: Received Event RX_BITS
+trau_sync(test){FRAME_ALIGNED}: Received Event RX_BITS
+trau_sync(test){FRAME_ALIGNED}: Received Event RX_BITS
+trau_sync(test){FRAME_ALIGNED}: Received Event RX_BITS
+trau_sync(test){FRAME_ALIGNED}: Received Event RX_BITS
+trau_sync(test){FRAME_ALIGNED}: state_chg to FRAME_ALIGNMENT_LOST
+trau_sync(test){FRAME_ALIGNMENT_LOST}: Received Event RX_BITS