Move spec/rubyspec to spec/ruby for consistency

* Other ruby implementations use the spec/ruby directory.
  [Misc #13792] [ruby-core:82287]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59979 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

spec/ruby/core/env/update_spec.rb

@@ -0,0 +1,25 @@
+require File.expand_path('../../../spec_helper', __FILE__)
+
+describe "ENV.update" do
+
+  it "adds the parameter hash to ENV" do
+    ENV["foo"].should == nil
+    ENV.update "foo" => "bar"
+    ENV["foo"].should == "bar"
+    ENV.delete "foo"
+  end
+
+  it "yields key, the old value and the new value when replacing entries" do
+    ENV.update "foo" => "bar"
+    ENV["foo"].should == "bar"
+    ENV.update("foo" => "boo") do |key, old, new|
+      key.should == "foo"
+      old.should == "bar"
+      new.should == "boo"
+      "rab"
+    end
+    ENV["foo"].should == "rab"
+    ENV.delete "foo"
+  end
+
+end