Update CHANGELOG.md to reflect the promotion of 2.1.7

Obvious fix; these changes are the result of automation not creative thinking.

CHANGELOG.md

@@ -1,28 +1,25 @@
-<!-- latest_release 2.1.7 -->
-## [v2.1.7](https://github.com/inspec/train/tree/v2.1.7) (2019-05-20)
-
-#### Merged Pull Requests
-- Set chef-foundation as the project owner and update expeditor [#456](https://github.com/inspec/train/pull/456) ([tas50](https://github.com/tas50))
+<!-- latest_release -->
 <!-- latest_release -->
 
-<!-- release_rollup since=2.1.2 -->
-### Changes since 2.1.2 release
-
-#### Merged Pull Requests
-- Set chef-foundation as the project owner and update expeditor [#456](https://github.com/inspec/train/pull/456) ([tas50](https://github.com/tas50)) <!-- 2.1.7 -->
-- Fix fallback regex for OpenSuse [#451](https://github.com/inspec/train/pull/451) ([n-rodriguez](https://github.com/n-rodriguez)) <!-- 2.1.6 -->
-- Fix failing unit tests verify_host_key in ssh [#452](https://github.com/inspec/train/pull/452) ([marcparadise](https://github.com/marcparadise)) <!-- 2.1.5 -->
-- Add codeclimate to train [#454](https://github.com/inspec/train/pull/454) ([miah](https://github.com/miah)) <!-- 2.1.4 -->
-- Add Code of Conduct to train [#453](https://github.com/inspec/train/pull/453) ([miah](https://github.com/miah)) <!-- 2.1.3 -->
+<!-- release_rollup -->
 <!-- release_rollup -->
 
 <!-- latest_stable_release -->
+## [v2.1.7](https://github.com/inspec/train/tree/v2.1.7) (2019-05-23)
+
+#### Merged Pull Requests
+- Add Code of Conduct to train [#453](https://github.com/inspec/train/pull/453) ([miah](https://github.com/miah))
+- Add codeclimate to train [#454](https://github.com/inspec/train/pull/454) ([miah](https://github.com/miah))
+- Fix failing unit tests verify_host_key in ssh [#452](https://github.com/inspec/train/pull/452) ([marcparadise](https://github.com/marcparadise))
+- Fix fallback regex for OpenSuse [#451](https://github.com/inspec/train/pull/451) ([n-rodriguez](https://github.com/n-rodriguez))
+- Set chef-foundation as the project owner and update expeditor [#456](https://github.com/inspec/train/pull/456) ([tas50](https://github.com/tas50))
+<!-- latest_stable_release -->
+
 ## [v2.1.2](https://github.com/inspec/train/tree/v2.1.2) (2019-05-15)
 
 #### Merged Pull Requests
 - Add Coveralls.io to Train [#440](https://github.com/inspec/train/pull/440) ([miah](https://github.com/miah))
 - Rename ca_trust_file to ca_trust_path [#450](https://github.com/inspec/train/pull/450) ([marcparadise](https://github.com/marcparadise))
-<!-- latest_stable_release -->
 
 ## [v2.1.0](https://github.com/inspec/train/tree/v2.1.0) (2019-05-06)