THRIFT-2013: add perl crosstest multiplexed client and server logic
Client: perl

This closes #1416
diff --git a/test/rs/src/bin/test_server.rs b/test/rs/src/bin/test_server.rs
index 81a2ad8..1976bf4 100644
--- a/test/rs/src/bin/test_server.rs
+++ b/test/rs/src/bin/test_server.rs
@@ -391,7 +391,7 @@
 struct SecondServiceSyncHandlerImpl;
 impl SecondServiceSyncHandler for SecondServiceSyncHandlerImpl {
     fn handle_secondtest_string(&self, thing: String) -> thrift::Result<String> {
-        info!("testString({})", &thing);
+        info!("(second)testString({})", &thing);
         let ret = format!("testString(\"{}\")", &thing);
         Ok(ret)
     }