Fix regression introduced in revision 10927 (OPENDJ-1074) which has incidentally enabled the -F (support re-bind) option in the authrate tool.
* PerformanceRunnerOptions.java: supportRebind setter fixed

git-svn-id: https://svn.forgerock.org/opendj/trunk/opendj@10935 41b1ffd8-f28e-4786-ab96-9950f0a78031