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/library/date/upto_spec.rb

@@ -0,0 +1,16 @@
+require File.expand_path('../../../spec_helper', __FILE__)
+require 'date'
+
+describe "Date#upto" do
+  it "returns future dates for the default step value" do
+    ds    = Date.civil(2008, 10, 11)
+    de    = Date.civil(2008,  9, 29)
+    count = 0
+    de.upto(ds) do |d|
+      d.should <= ds
+      d.should >= de
+      count += 1
+    end
+    count.should == 13
+  end
+end