more naming fixes.

* it's Action Mailer not ActionMailer
* it's Action Pack not ActionPack
* it's Active Support not ActiveSupport

/cc @fxn

1 files changed, 5 insertions, 3 deletions

diff --git a/guides/source/active_support_core_extensions.md b/guides/source/active_support_core_extensions.md
index 263dabce87..54f4b79b3b 100644
--- a/guides/source/active_support_core_extensions.md
+++ b/guides/source/active_support_core_extensions.md
@@ -10,7 +10,7 @@ After reading this guide, you will know:
 * What Core Extensions are.
 * How to load all extensions.
 * How to cherry-pick just the extensions you want.
-* What extensions ActiveSupport provides.
+* What extensions Active Support provides.
 
 --------------------------------------------------------------------------------
 
@@ -2374,7 +2374,8 @@ NOTE: Defined in `active_support/core_ext/array/wrap.rb`.
 
 ### Duplicating
 
-The method `Array.deep_dup` duplicates itself and all objects inside recursively with ActiveSupport method `Object#deep_dup`. It works like `Array#map` with sending `deep_dup` method to each object inside.
+The method `Array.deep_dup` duplicates itself and all objects inside
+recursively with Active Support method `Object#deep_dup`. It works like `Array#map` with sending `deep_dup` method to each object inside.
 
 ```ruby
 array = [1, [2, 3]]
@@ -2595,7 +2596,8 @@ NOTE: Defined in `active_support/core_ext/hash/deep_merge.rb`.
 
 ### Deep duplicating
 
-The method `Hash.deep_dup` duplicates itself and all keys and values inside recursively with ActiveSupport method `Object#deep_dup`. It works like `Enumerator#each_with_object` with sending `deep_dup` method to each pair inside.
+The method `Hash.deep_dup` duplicates itself and all keys and values
+inside recursively with Active Support method `Object#deep_dup`. It works like `Enumerator#each_with_object` with sending `deep_dup` method to each pair inside.
 
 ```ruby
 hash = { a: 1, b: { c: 2, d: [3, 4] } }