Mrntt:main: call mrntt:finalizeReq on exception

We'll wrap this in some exception-specific wrapper later.

smocore/marionette/main.cpp

@@ -181,7 +181,10 @@ void MarionetteThread::main(MarionetteThread& self)
 			if (sendExceptionInd)
 			{
 				mrntt::exitCode = EXIT_FAILURE;
-				self.exceptionInd(self.shared_from_this());
+				mrntt::mrntt.finalizeReq(
+					std::bind(
+						&mrntt::marionetteFinalizeReqCb,
+						std::placeholders::_1));
 			}
         }