Merge pull request #1585 from erlang/nowarn_export_all

drop warnings for `export_all` in test profile

rebar.config

@@ -39,7 +39,7 @@
 %% Profiles
 {profiles, [{test, [
                    {deps, [{meck, "0.8.7"}]},
-                   {erl_opts, [debug_info]}
+                   {erl_opts, [debug_info, nowarn_export_all]}
                    ]
             },