* test/ruby/test_signal.rb (test_hup_me): added a few comments.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@39829 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,7 @@
+Sat Mar 16 03:40:49 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* test/ruby/test_signal.rb (test_hup_me): added a few comments.
+
 Sat Mar 16 03:39:38 2013  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
 
 	* thread.c (ruby_kill): added a few comments.

test/ruby/test_signal.rb

@@ -276,6 +276,10 @@ EOS
 
   def test_hup_me
     # [Bug #7951] [ruby-core:52864]
+    # This is MRI specific spec. ruby has no guarantee
+    # that signal will be deliverd synchronously.
+    # This ugly workaround was introduced to don't break
+    # compatibility against silly example codes.
     assert_raise(SignalException) {
       Process.kill('HUP',Process.pid)
     }