Merge pull request #1636 from nagachika/fix-release-2.4.2-commit-logs-link

Sorry, I miss to change link for commit logs.

Author: hsbt

en/news/_posts/2017-09-14-ruby-2-4-2-released.md

@@ -18,7 +18,7 @@ This release contains some security fixes.
 * Update bundled libyaml to version 0.1.7.
 
 There are also many bug-fixes.
-See [commit logs](https://github.com/ruby/ruby/compare/v2_4_0...v2_4_1) for more details.
+See [commit logs](https://github.com/ruby/ruby/compare/v2_4_1...v2_4_2) for more details.
 
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