Fixup: typos

Author: zuiderkwast

bootstrap

@@ -7,7 +7,7 @@ main(Args) ->
         true ->
             os:putenv("REBAR_OFFLINE", "1");
         false ->
-            _
+            ok
     end,
     ensure_app(crypto),
     ensure_app(asn1),

src/rebar_prv_local_upgrade.erl

@@ -122,7 +122,7 @@ etag(Path) ->
 request(Url, ETag) ->
     case os:getenv("REBAR_OFFLINE") of
         "1" ->
-            ?DEBUG("Rebar is in offline mode"),
+            ?DEBUG("Rebar is in offline mode", []),
             error;
         _ ->
             request_online(Url, ETag)