JDK 9 RFR of JDK-8139407: Mark java/rmi/registry/readTest/readTest.sh as intermittently failing

[Amy Lu]

Test java/rmi/registry/readTest/readTest.sh is known to fail 
intermittently, this patch is to mark the test accordingly with keyword 
'intermittent'.

bug: https://bugs.openjdk.java.net/browse/JDK-8139407
webrev: http://cr.openjdk.java.net/~amlu/8139407/webrev.00/

Thanks,
Amy

--- old/test/java/rmi/registry/readTest/readTest.sh  2015-10-12 
16:10:48.000000000 +0800
+++ new/test/java/rmi/registry/readTest/readTest.sh  2015-10-12 
16:10:48.000000000 +0800
@@ -27,6 +27,7 @@
  # @build TestLibrary
  # @summary remove java.rmi.server.codebase property parsing from 
registyimpl
  # @run shell readTest.sh
+# @key intermittent

  OS=`uname -s`
  VER=`uname -r`