Additional review of 6b31761.

* Fixes typos in error message and release notes.
* Removes unused template test file.

actionpack/lib/action_controller/metal/implicit_render.rb

@@ -37,7 +37,7 @@ module ActionController
       if template_exists?(action_name.to_s, _prefixes, variants: request.variant)
         render(*args)
       elsif any_templates?(action_name.to_s, _prefixes)
-        message = "#{self.class.name}\##{action_name} does not know how to repond " \
+        message = "#{self.class.name}\##{action_name} does not know how to respond " \
           "to this request. There are other templates available for this controller " \
           "action but none of them were suitable for this request.\n\n" \
           "This usually happens when the client requested an unsupported format " \

actionpack/test/fixtures/implicit_render_test/some_action_2.html+zomg.erb

@@ -1 +0,0 @@
-zomg

guides/source/5_0_release_notes.md

@@ -257,7 +257,7 @@ Please refer to the [Changelog][action-pack] for detailed changes.
     ([Pull Request](https://github.com/rails/rails/pull/17573))
 
 *   Controller actions without an explicit `render` call and with no
-    corresponding templates will render `head :no_conten` implicitly
+    corresponding templates will render `head :no_content` implicitly
     instead of raising an error.
     (Pull Request [1](https://github.com/rails/rails/pull/19377),
     [2](https://github.com/rails/rails/pull/23827))