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/replace_spec.rb

@@ -0,0 +1,15 @@
+require File.expand_path('../../../spec_helper', __FILE__)
+
+describe "ENV.replace" do
+
+  it "replaces ENV with a Hash" do
+    ENV["foo"] = "bar"
+    e = ENV.reject { |k, v| k == "foo" }
+    e["baz"] = "bam"
+    ENV.replace e
+    ENV["foo"].should == nil
+    ENV["baz"].should == "bam"
+    ENV.delete "baz"
+  end
+
+end