Try make a test less time sensitive

Author: kjnilsson

src/ra.erl

@@ -163,7 +163,7 @@ start_in(DataDir) ->
     ok = logger:add_handler(ra_handler, logger_std_h, Config),
     _ = application:load(sasl),
     ok = application:set_env(sasl, sasl_error_logger, {file, SaslFile}),
-    ok = application:stop(sasl),
+    _ = application:stop(sasl),
     ok = application:start(sasl),
     _ = error_logger:tty(false),
     start([{data_dir, DataDir}]).

test/ra_machine_int_SUITE.erl

@@ -397,7 +397,8 @@ meta_data(Config) ->
                             end),
     ClusterName = ?config(cluster_name, Config),
     ServerId = ?config(server_id, Config),
-    T = os:system_time(millisecond),
+    T = erlang:system_time(millisecond),
+    timer:sleep(100),
     ok = start_cluster(ClusterName, {module, Mod, #{}}, [ServerId]),
     {ok, {metadata, Idx, Term, Ts}, ServerId} =
         ra:process_command(ServerId, any_command),