If a request that includes an "Expect: 100-continue" header receives anything other than a 2xx response, close the connection.
This protects against mis-behaving clients that may not sent the request body in that case and send the next request instead.

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1540687 13f79535-47bb-0310-9956-ffa450edef68