fix initialization of search value

src/http/header/get.c

@@ -41,7 +41,7 @@ comp(const void * _a, const void * _b)
 HttpHeader
 httpHeaderGet(const HttpHeader * root, const char * name)
 {
-	struct c_HttpHeader search = {sdbm((const unsigned char*)name), NULL, NULL};
+	struct c_HttpHeader search = {sdbm((const unsigned char*)name), NULL, {}, 0};
 	HttpHeader *        found  = tfind(&search, (void**)root, comp);
 
 	return (NULL != found)? *found : NULL;