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/process/waitpid_spec.rb

@@ -0,0 +1,15 @@
+require File.expand_path('../../../spec_helper', __FILE__)
+
+describe "Process.waitpid" do
+  it "needs to be reviewed for spec completeness"
+
+  it "returns nil when the process has not yet completed and WNOHANG is specified" do
+    pid = spawn("sleep 5")
+    begin
+      Process.waitpid(pid, Process::WNOHANG).should == nil
+      Process.kill("KILL", pid)
+    ensure
+      Process.wait(pid)
+    end
+  end
+end