fix logger for ring buffer

bin/main.cpp

@@ -12,7 +12,7 @@ auto main(int argc, char *argv[]) -> int
 { 
   // patterns::ring_buffer
   {
-    hack::patterns::ring_buffer<int, 10> rb;
+    hack::patterns::ring_buffer<int> rb(10);
     for (int i = 1; i < 12; ++i) rb.put(i);
     hack::log()(rb);
   }