Merge release version of Rubygems 2.7.0.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60608 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

NEWS

@@ -189,7 +189,8 @@ with all sufficient information, see the ChangeLog file or Redmine
 
 * Rubygems
 
-  * Update Rubygems 2.6.14.
+  * Update Rubygems 2.7.0.
+    * http://blog.rubygems.org/2017/11/01/2.7.0-released.html
     * http://blog.rubygems.org/2017/08/27/2.6.13-released.html
     * http://blog.rubygems.org/2017/10/09/unsafe-object-deserialization-vulnerability.html
 

lib/rubygems.rb

@@ -10,7 +10,7 @@ require 'rbconfig'
 require 'thread'
 
 module Gem
-  VERSION = "2.6.14"
+  VERSION = "2.7.0"
 end
 
 # Must be first since it unloads the prelude from 1.9.2

lib/rubygems/safe_yaml.rb

@@ -35,7 +35,10 @@ module Gem
         ::YAML.safe_load(input, [::Symbol])
       end
     else
-      warn "YAML safe loading is not available. Please upgrade psych to a version that supports safe loading (>= 2.0)."
+      unless Gem::Deprecate.skip
+        warn "YAML safe loading is not available. Please upgrade psych to a version that supports safe loading (>= 2.0)."
+      end
+
       def self.safe_load input, *args
         ::YAML.load input
       end