fix handle_deps when no deps are to be fetched

src/rebar3.erl

@@ -112,7 +112,6 @@ run_aux(State, GlobalPluginProviders, RawArgs) ->
                             filename:join(filename:absname(rebar_state:dir(State)), BaseDir)),
 
     {ok, Providers} = application:get_env(rebar, providers),
-
     {ok, PluginProviders, State3} = rebar_plugins:install(State2),
     rebar_core:update_code_path(State3),
 

src/rebar_prv_install_deps.erl

@@ -99,7 +99,7 @@ handle_deps(State, Deps) ->
 -spec handle_deps(rebar_state:t(), [dep()], boolean() | {true, binary(), integer()})
                  -> {ok, [rebar_app_info:t()], rebar_state:t()} | {error, string()}.
 handle_deps(State, [], _) ->
-    {ok, State};
+    {ok, [], State};
 handle_deps(State, Deps, Update) ->
     %% Read in package index and dep graph
     {Packages, Graph} = rebar_packages:get_packages(State),