* tags/4.2.0-rc-3: Tag head of branches/4.2.0 as Release Candidate 3.
  Primary change from -rc-2 is added support for Sun C++ 5.9.



git-svn-id: https://svn.apache.org/repos/asf/incubator/stdcxx/tags/4.2.0-rc-3@573360 13f79535-47bb-0310-9956-ffa450edef68