Merge branch 'master' into stmt

* master: (330 commits)
  plugin new missing license spec
  let Ruby do the is_a check for us
  Mocha 0.14.0 was released with MT5 support. Switch back to gem
  Fix named routing regression from 3.2.13
  Revert "just call the class method since we know the callbacks are stored at the"
  test refactor
  Add more data to AR::UnknownAttributeError
  Raise when multiple included blocks are defined
  Revert "Integration tests support the OPTIONS http method"
  restore whitespace in Gemfile between sqlite3 and sprockets
  Revert "Add the options method to action_controller testcase."
  Check if APP_RAKEFILE is defined
  Fix detection of engine in rake db:load_config Broken by d1d7c86d0c8dcb7e75a87644b330c4e9e7d6c1c1
  Remove trailing line break
  tiny types should only be integers when the length is <= 1. fixes #10620
  add failing test exposing mysql adapter tinyint bug
  require things we need
  Revert "Merge pull request #10600 from aditya-kapoor/code_refactor"
  just call the class method since we know the callbacks are stored at the class level
  this variable is used, so we don't have to use double assignments
  ...

1 files changed, 10 insertions, 7 deletions

diff --git a/guides/source/active_support_core_extensions.md b/guides/source/active_support_core_extensions.md
index 101a4f5b42..c012ded888 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.
 
 --------------------------------------------------------------------------------
 
@@ -166,7 +166,7 @@ NOTE: Defined in `active_support/core_ext/object/duplicable.rb`.
 
 ### `deep_dup`
 
-The `deep_dup` method returns deep copy of a given object. Normally, when you `dup` an object that contains other objects, ruby does not `dup` them, so it creates a shallow copy of the object. If you have an array with a string, for example, it will look like this:
+The `deep_dup` method returns deep copy of a given object. Normally, when you `dup` an object that contains other objects, Ruby does not `dup` them, so it creates a shallow copy of the object. If you have an array with a string, for example, it will look like this:
 
 ```ruby
 array     = ['string']
@@ -476,12 +476,11 @@ NOTE: Defined in `active_support/core_ext/kernel/reporting.rb`.
 
 ### `in?`
 
-The predicate `in?` tests if an object is included in another object or a list of objects. An `ArgumentError` exception will be raised if a single argument is passed and it does not respond to `include?`.
+The predicate `in?` tests if an object is included in another object. An `ArgumentError` exception will be raised if the argument passed does not respond to `include?`.
 
 Examples of `in?`:
 
 ```ruby
-1.in?(1,2)          # => true
 1.in?([1,2])        # => true
 "lo".in?("hello")   # => true
 25.in?(30..50)      # => false
@@ -2216,7 +2215,9 @@ NOTE: Defined in `active_support/core_ext/array/conversions.rb`.
 
 The method `to_formatted_s` acts like `to_s` by default.
 
-If the array contains items that respond to `id`, however, it may be passed the symbol `:db` as argument. That's typically used with collections of ARs. Returned strings are:
+If the array contains items that respond to `id`, however, the symbol
+`:db` may be passed as argument. That's typically used with
+collections of Active Record objects. Returned strings are:
 
 ```ruby
 [].to_formatted_s(:db)            # => "null"
@@ -2372,7 +2373,8 @@ 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]]
@@ -2593,7 +2595,8 @@ 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] } }