durations: fix an incorrect preprocessing condition
H2O_USE_LIBUV is always defined, despite DISABLE_LIBUV being set
on CMAKE invocation. See "include/h2o/socket.h" for proof.
@@ -70,7 +70,7 @@ static void durations_status_per_thread(void *priv, h2o_context_t *ctx)
ADD_DURATION(total_time);
#undef ADD_DURATION
-#ifndef H2O_USE_LIBUV
+#if !H2O_USE_LIBUV
h2o_vector_reserve(NULL, &agg_stats->stats.evloop_latency_nanosec, agg_stats->stats.evloop_latency_nanosec.size + 1);
agg_stats->stats.evloop_latency_nanosec.entries[agg_stats->stats.evloop_latency_nanosec.size] = h2o_evloop_get_execution_time_nanosec(ctx->loop);
agg_stats->stats.evloop_latency_nanosec.size++;
