Switch to supports_cache_versioning? check to a class method

- Moving the `supports_cache_versioning?` check to a class method. 
- Shorten the method doc. 
- Expand on the error message.

2 files changed, 4 insertions, 2 deletions

diff --git a/railties/CHANGELOG.md b/railties/CHANGELOG.md
index da4beedecf..4342cf6968 100644
--- a/railties/CHANGELOG.md
+++ b/railties/CHANGELOG.md
@@ -1,5 +1,7 @@
 *   Raise an error when "recyclable cache keys" are being used by a cache store
-    that does not explicitly support it.
+    that does not explicitly support it. Custom cache keys that do support this feature
+    can bypass this error by implementing the `supports_cache_versioning?` method on their
+    class and returning a truthy value.
 
     *Richard Schneeman*
 
diff --git a/railties/test/application/configuration_test.rb b/railties/test/application/configuration_test.rb
index 386b4f76e6..8c10413525 100644
--- a/railties/test/application/configuration_test.rb
+++ b/railties/test/application/configuration_test.rb
@@ -133,7 +133,7 @@ module ApplicationTests
         app "production"
       end
 
-      assert_match(/You're using a cache store/, error.message)
+      assert_match(/You're using a cache/, error.message)
     end
 
     test "a renders exception on pending migration" do