RelMe.maybe_put_rel_me/2: When true put "me" otherwise nil

lib/pleroma/web/rel_me.ex

@@ -40,12 +40,12 @@ defmodule Pleroma.Web.RelMe do
 
     true = Enum.any?(rel_me_hrefs, fn x -> x in profile_urls end)
 
-    "rel=\"me\" "
+    "me"
   rescue
-    _ -> ""
+    _ -> nil
   end
 
   def maybe_put_rel_me(_, _) do
-    ""
+    nil
   end
 end

test/web/rel_me_test.exs

@@ -37,13 +37,14 @@ defmodule Pleroma.Web.RelMeTest do
 
   test "maybe_put_rel_me/2" do
     profile_urls = ["https://social.example.org/users/lain"]
-    attr = "rel=\"me\" "
+    attr = "me"
+    fallback = nil
 
     assert Pleroma.Web.RelMe.maybe_put_rel_me("http://example.com/rel_me/null", profile_urls) ==
-             ""
+             fallback
 
     assert Pleroma.Web.RelMe.maybe_put_rel_me("http://example.com/rel_me/error", profile_urls) ==
-             ""
+             fallback
 
     assert Pleroma.Web.RelMe.maybe_put_rel_me("http://example.com/rel_me/anchor", profile_urls) ==
              attr