test_vt: remove trailing newline in log-message

The log-subsystem adds these automatically so we shouldn't use them.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>

tests/test_vt.c

@@ -119,7 +119,7 @@ int main(int argc, char **argv)
 
 	ev_eloop_run(eloop, -1);
 
-	log_debug("Terminating\n");
+	log_debug("Terminating");
 
 	/* switch back to previous VT but wait for eloop to process SIGUSR0 */
 	ret = uterm_vt_deactivate(vt);