Add missing `+` around a some literals.

Mainly around `nil`

[ci skip]

2 files changed, 2 insertions, 2 deletions

diff --git a/actionpack/lib/action_controller/metal/etag_with_template_digest.rb b/actionpack/lib/action_controller/metal/etag_with_template_digest.rb
index 6c103bb042..798564db96 100644
--- a/actionpack/lib/action_controller/metal/etag_with_template_digest.rb
+++ b/actionpack/lib/action_controller/metal/etag_with_template_digest.rb
@@ -40,7 +40,7 @@ module ActionController
       end
 
       # Pick the template digest to include in the ETag. If the +:template+ option
-      # is present, use the named template. If +:template+ is nil or absent, use
+      # is present, use the named template. If +:template+ is +nil+ or absent, use
       # the default controller/action template. If +:template+ is false, omit the
       # template digest from the ETag.
       def pick_template_for_etag(options)
diff --git a/actionpack/lib/action_controller/metal/strong_parameters.rb b/actionpack/lib/action_controller/metal/strong_parameters.rb
index b64617d084..eb5fc87072 100644
--- a/actionpack/lib/action_controller/metal/strong_parameters.rb
+++ b/actionpack/lib/action_controller/metal/strong_parameters.rb
@@ -539,7 +539,7 @@ module ActionController
       new_instance_with_inherited_permitted_status(@parameters.select(&block))
     end
 
-    # Equivalent to Hash#keep_if, but returns nil if no changes were made.
+    # Equivalent to Hash#keep_if, but returns +nil+ if no changes were made.
     def select!(&block)
       @parameters.select!(&block)
       self