Adjust return type of thread_runner.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@118259 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/c-index-test/c-index-test.c b/tools/c-index-test/c-index-test.c
index d0e4cb9..83782fd 100644
--- a/tools/c-index-test/c-index-test.c
+++ b/tools/c-index-test/c-index-test.c
@@ -1583,10 +1583,9 @@
   const char **argv;
   int result;
 } thread_info;
-void *thread_runner(void *client_data_v) {
+void thread_runner(void *client_data_v) {
   thread_info *client_data = client_data_v;
   client_data->result = cindextest_main(client_data->argc, client_data->argv);
-  return 0;
 }
 
 int main(int argc, const char **argv) {