Replace any -> term in modules or functions mixing them

[sabiwara]

Some functions are using a mix of any and term within the same signature, which somebody pointed out to me is confusing as it seems to indicate some kind of nuance.

I know that specs are not meant to stay forever, so I gave up fixing all instances of any, but I searched for these mixed specs and replaced any by term (sometimes in other functions of the same module too) for consistency.

# quick-and-dirty one-liner for reference:
Path.wildcard("lib/**/*.ex") |> Enum.flat_map(fn file -> File.read!(file) |> Code.string_to_quoted() |> Macro.prewalker() |> Stream.filter(&match?({:@, _, [{x, _, _} | _]} when x in [:spec, :callback], &1)) |> Stream.map(&Macro.to_string/1) |> Stream.filter(& &1 =~ ~r/\bany\b/ && &1 =~ "term") |> Stream.map(& file <> "\t" <> &1)  end) |> Enum.each(&IO.puts/1)

[josevalim]

Given the type system will have term but not any, this is the right way to go.