Small fixes

- Use plug formatter
- Add fallback match
- Remove tabs!

.formatter.exs

@@ -1,4 +1,5 @@
 # Used by "mix format"
 [
-  inputs: ["mix.exs", "{config,lib,test}/**/*.{ex,exs}"]
+  inputs: ["mix.exs", "{config,lib,test}/**/*.{ex,exs}"],
+  import_deps: [:plug]
 ]

lib/plug_micropub.ex

@@ -7,8 +7,8 @@ defmodule PlugMicropub do
   """
   use Plug.Router
 
-  plug(:match)
-  plug(:dispatch)
+  plug :match
+  plug :dispatch
 
   # Plug Callbacks
 
@@ -64,6 +64,10 @@ defmodule PlugMicropub do
     end
   end
 
+  match _ do
+    send_error(conn, {:error, :invalid_request})
+  end
+
   # Internal Functions
 
   defp send_content(conn, content) do