Switch to more descriptive catch check

Author: lukewhiting

modules/streams/src/yamlRestTest/resources/rest-api-spec/test/streams/logs/30_param_restrictions.yml

@@ -42,4 +42,4 @@ teardown:
         refresh: true
         index: logs
         body: { "foo": "bar" }
-      catch: bad_request
+      catch: '/When writing to a stream, only the following parameters are allowed: \[error_trace,timeout\]/'