Fix identifier typo in Thrift error message.

Fix identifier typo in Thrift error message.

Trac Bug: #

Reviewed By:

Test Plan:
The correct error message appears when a PHP Thrift client can't
connect to a server.  Set that up, and try and get the error message:

[Wed Jan 17 10:41:41 2007] [error] TSocketPool: retryInterval (60) has
passed for host dev007:8188

...then you're good.  If you get something about a undefined property,
then this fix didn't work.

Revert Plan: Revertible

git-svn-id: https://svn.apache.org/repos/asf/incubator/thrift/trunk@664920 13f79535-47bb-0310-9956-ffa450edef68