Use ~W sigil where possible!

[ci skip]

lib/httparrot/cache_handler.ex

@@ -9,7 +9,7 @@ defmodule HTTParrot.CacheHandler do
   end
 
   def allowed_methods(req, state) do
-    {["GET", "HEAD", "OPTIONS"], req, state}
+    {~W(GET HEAD OPTIONS), req, state}
   end
 
   def last_modified(req, state) do

lib/httparrot/deny_handler.ex

@@ -8,7 +8,7 @@ defmodule HTTParrot.DenyHandler do
   end
 
   def allowed_methods(req, state) do
-    {["GET", "HEAD", "OPTIONS"], req, state}
+    {~W(GET HEAD OPTIONS), req, state}
   end
 
   def content_types_provided(req, state) do

lib/httparrot/get_handler.ex

@@ -9,7 +9,7 @@ defmodule HTTParrot.GetHandler do
   end
 
   def allowed_methods(req, state) do
-    {["GET", "HEAD", "OPTIONS"], req, state}
+    {~W(GET HEAD OPTIONS), req, state}
   end
 
   def content_types_provided(req, state) do

lib/httparrot/redirect_handler.ex

@@ -8,7 +8,7 @@ defmodule HTTParrot.RedirectHandler do
   end
 
   def allowed_methods(req, state) do
-    {["GET", "HEAD", "OPTIONS"], req, state}
+    {~W(GET HEAD OPTIONS), req, state}
   end
 
   def malformed_request(req, state) do

lib/httparrot/redirect_to_handler.ex

@@ -8,7 +8,7 @@ defmodule HTTParrot.RedirectToHandler do
   end
 
   def allowed_methods(req, state) do
-    {["GET", "HEAD", "OPTIONS"], req, state}
+    {~W(GET HEAD OPTIONS), req, state}
   end
 
   def malformed_request(req, state) do

lib/httparrot/relative_redirect_handler.ex

@@ -8,7 +8,7 @@ defmodule HTTParrot.RelativeRedirectHandler do
   end
 
   def allowed_methods(req, state) do
-    {["GET", "HEAD", "OPTIONS"], req, state}
+    {~W(GET HEAD OPTIONS), req, state}
   end
 
   def malformed_request(req, state) do

lib/httparrot/robots_handler.ex

@@ -8,7 +8,7 @@ defmodule HTTParrot.RobotsHandler do
   end
 
   def allowed_methods(req, state) do
-    {["GET", "HEAD", "OPTIONS"], req, state}
+    {~W(GET HEAD OPTIONS), req, state}
   end
 
   def content_types_provided(req, state) do

lib/httparrot/status_code_handler.ex

@@ -8,7 +8,7 @@ defmodule HTTParrot.StatusCodeHandler do
   end
 
   def allowed_methods(req, state) do
-    {["GET", "HEAD", "OPTIONS"], req, state}
+    {~W(GET HEAD OPTIONS), req, state}
   end
 
   def content_types_provided(req, state) do