nghttpx: Fix memory leak

src/shrpx.cc

@@ -2617,6 +2617,8 @@ int main(int argc, char **argv) {
 
   LOG(NOTICE) << "Shutdown momentarily";
 
+  delete log_config();
+
   return 0;
 }
 

src/shrpx_worker.cc

@@ -101,6 +101,7 @@ Worker::Worker(struct ev_loop *loop, SSL_CTX *sv_ssl_ctx, SSL_CTX *cl_ssl_ctx,
 Worker::~Worker() {
   ev_async_stop(loop_, &w_);
   ev_timer_stop(loop_, &mcpool_clear_timer_);
+  ev_loop_destroy(loop_);
 }
 
 void Worker::schedule_clear_mcpool() {
@@ -121,6 +122,7 @@ void Worker::run_async() {
   fut_ = std::async(std::launch::async, [this] {
     (void)reopen_log_files();
     ev_run(loop_);
+    delete log_config();
   });
 #endif // !NOTHREADS
 }