Print EMQ X Version in the console

src/emqx.app.src

@@ -1,6 +1,6 @@
 {application,emqx,
              [{description,"EMQ X Broker"},
-              {vsn,"3.0"},
+              {vsn,"3.0-rc.3"},
               {modules,[]},
               {registered,[emqx_sup]},
               {applications,[kernel,stdlib,jsx,gproc,gen_rpc,esockd,

src/emqx_app.erl

@@ -47,12 +47,12 @@ stop(_State) ->
 %%--------------------------------------------------------------------
 
 print_banner() ->
-    logger:info("Starting ~s on node ~s", [?APP, node()]).
+    io:format("Starting ~s on node ~s~n", [?APP, node()]).
 
 print_vsn() ->
     {ok, Descr} = application:get_key(description),
     {ok, Vsn} = application:get_key(vsn),
-    logger:info("~s ~s is running now!", [Descr, Vsn]).
+    io:format("~s ~s is running now!~n", [Descr, Vsn]).
 
 %%--------------------------------------------------------------------
 %% Autocluster