unify CHANGELOG format. [ci skip]

actionmailer/CHANGELOG.md

@@ -1,5 +1,7 @@
 *   Add `assert_enqueued_emails` and `assert_no_enqueued_emails`.
 
+    Example:
+
         def test_emails
           assert_enqueued_emails 2 do
             ContactMailer.welcome.deliver_later

actionpack/CHANGELOG.md

@@ -1,7 +1,7 @@
 *   Migrating to keyword arguments syntax in `ActionController::TestCase` and
-    `ActionDispatch::Integration` HTTP request methods
+    `ActionDispatch::Integration` HTTP request methods.
 
-    New syntax example:
+    Example:
 
         post :create, params: { y: x }, session: { a: 'b' }
         get :view, params: { id: 1 }
@@ -9,7 +9,7 @@
 
     *Kir Shatrov*
 
-*   Preserve default url options when generating URLs
+*   Preserve default url options when generating URLs.
 
     Fixes an issue that would cause default_url_options to be lost when
     generating URLs with fewer positional arguments than parameters in the
@@ -47,6 +47,7 @@
 *   Allow you to pass `prepend: false` to protect_from_forgery to have the
     verification callback appended instead of prepended to the chain.
     This allows you to let the verification step depend on prior callbacks.
+
     Example:
 
         class ApplicationController < ActionController::Base
@@ -143,7 +144,7 @@
 
     *Travis Grathwell*
 
-*   Stop converting empty arrays in `params` to `nil`
+*   Stop converting empty arrays in `params` to `nil`.
 
     This behaviour was introduced in response to CVE-2012-2660, CVE-2012-2694
     and CVE-2013-0155

activemodel/CHANGELOG.md

@@ -2,48 +2,46 @@
     will now raise `ActiveModel::AttributeAssignment::UnknownAttributeError` instead of
     `NoMethodError`
 
-    ```ruby
-    User.new(foo: 'some value')
-    # => ActiveModel::AttributeAssignment::UnknownAttributeError: unknown attribute 'foo' for User.
-    ```
+    Example:
+
+        User.new(foo: 'some value')
+        # => ActiveModel::AttributeAssignment::UnknownAttributeError: unknown attribute 'foo' for User.
 
     *Eugene Gilburg*
 
 *   Extracted `ActiveRecord::AttributeAssignment` to `ActiveModel::AttributeAssignment`
-    allowing to use it for any object as an includable module
+    allowing to use it for any object as an includable module.
 
-    ``` ruby
-    class Cat
-      include ActiveModel::AttributeAssignment
-      attr_accessor :name, :status
-    end
+    Example:
 
-    cat = Cat.new
-    cat.assign_attributes(name: "Gorby", status: "yawning")
-    cat.name # => 'Gorby'
-    cat.status => 'yawning'
-    cat.assign_attributes(status: "sleeping")
-    cat.name # => 'Gorby'
-    cat.status => 'sleeping'
-    ```
+        class Cat
+          include ActiveModel::AttributeAssignment
+          attr_accessor :name, :status
+        end
+
+        cat = Cat.new
+        cat.assign_attributes(name: "Gorby", status: "yawning")
+        cat.name # => 'Gorby'
+        cat.status => 'yawning'
+        cat.assign_attributes(status: "sleeping")
+        cat.name # => 'Gorby'
+        cat.status => 'sleeping'
 
     *Bogdan Gusiev*
 
 *   Add `ActiveModel::Errors#details`
 
     To be able to return type of used validator, one can now call `details`
-    on Errors instance:
+    on errors instance.
 
-    ```ruby
-    class User < ActiveRecord::Base
-      validates :name, presence: true
-    end
-    ```
+    Example:
 
-    ```ruby
-    user = User.new; user.valid?; user.errors.details
-    => {name: [{error: :blank}]}
-    ```
+        class User < ActiveRecord::Base
+          validates :name, presence: true
+        end
+
+        user = User.new; user.valid?; user.errors.details
+        => {name: [{error: :blank}]}
 
     *Wojciech Wnętrzak*
 

activerecord/CHANGELOG.md

@@ -1,7 +1,9 @@
 *   Fixed ActiveRecord::Relation#group method when argument is SQL reserved key word:
 
-      SplitTest.group(:key).count
-      Property.group(:value).count
+    Example:
+
+        SplitTest.group(:key).count
+        Property.group(:value).count
 
     *Bogdan Gusiev*
 
@@ -86,7 +88,7 @@
     A deprecation warning will be emitted if you have a `:time` column, and have
     not explicitly opted out.
 
-    Fixes #3145
+    Fixes #3145.
 
     *Sean Griffin*