Fix compile error and warning with gcc

src/h2load.cc

@@ -303,7 +303,7 @@ int Client::connect() {
       return -1;
     }
   } else {
-    addrinfo *addr;
+    addrinfo *addr = nullptr;
     while (next_addr) {
       addr = next_addr;
       next_addr = next_addr->ai_next;
@@ -317,6 +317,8 @@ int Client::connect() {
       return -1;
     }
 
+    assert(addr);
+
     current_addr = addr;
   }
 

src/template.h

@@ -27,6 +27,7 @@
 
 #include "nghttp2_config.h"
 
+#include <cstring>
 #include <memory>
 #include <array>
 #include <functional>