Fix regression from 0.16.13
PR merged https://github.com/rakshasa/rtorrent/pull/1806.patch
From 8e52277917c1d84cb7cef46cc7bc5544738b85f9 Mon Sep 17 00:00:00 2001
From: Xirvik <community@xirvik.net>
Date: Thu, 4 Jun 2026 23:15:50 +0000
Subject: [PATCH] fix(rpc): preserve c_str() stability of stored XMLRPC method
--- a/src/rpc/xmlrpc.cc
+++ b/src/rpc/xmlrpc.cc
@@ -1,3 +1,4 @@
+#include <deque>
 #include "config.h"
 
 #include "xmlrpc.h"
@@ -9,7 +10,7 @@
 
 namespace rpc {
 
-std::vector<std::string> XmlRpc::m_command_names;
+std::deque<std::string>  XmlRpc::m_command_names;
 
 const char*
 XmlRpc::store_command_name(const char* name) {
--- a/src/rpc/xmlrpc.h
+++ b/src/rpc/xmlrpc.h
@@ -1,6 +1,7 @@
 #ifndef RTORRENT_RPC_XMLRPC_H
 #define RTORRENT_RPC_XMLRPC_H
 
+#include <deque>
 #include <functional>
 #include <torrent/common.h>
 #include <torrent/hash_string.h>
@@ -61,7 +62,7 @@ class XmlRpc {
 private:
   static const char*  store_command_name(const char* name);
 
-  static std::vector<std::string> m_command_names;
+  static std::deque<std::string>  m_command_names;
 
   slot_download       m_slotFindDownload;
   slot_file           m_slotFindFile;