[#2332] Misc. fixes per code change requests.

lib/pleroma/web/activity_pub/mrf.ex

@@ -33,7 +33,7 @@ defmodule Pleroma.Web.ActivityPub.MRF do
 
   @spec subdomain_match?([Regex.t()], String.t()) :: boolean()
   def subdomain_match?(domains, host) do
-    !!Enum.find(domains, fn domain -> Regex.match?(domain, host) end)
+    Enum.any?(domains, fn domain -> Regex.match?(domain, host) end)
   end
 
   @callback describe() :: {:ok | :error, Map.t()}

priv/repo/migrations/20200328130139_add_following_relationships_following_id_index.exs

@@ -6,6 +6,6 @@ defmodule Pleroma.Repo.Migrations.AddFollowingRelationshipsFollowingIdIndex do
   def change do
     drop_if_exists(index(:following_relationships, [:follower_id]))
 
-    create_if_not_exists(drop_if_exists(index(:following_relationships, [:following_id])))
+    create_if_not_exists(index(:following_relationships, [:following_id]))
   end
 end