rpc: don't include start time if restricted

src/rpc/core_rpc_server.cpp

@@ -198,7 +198,7 @@ namespace cryptonote
     res.block_size_limit = m_core.get_blockchain_storage().get_current_cumulative_blocksize_limit();
     res.block_size_median = m_core.get_blockchain_storage().get_current_cumulative_blocksize_median();
     res.status = CORE_RPC_STATUS_OK;
-    res.start_time = (uint64_t)m_core.get_start_time();
+    res.start_time = m_restricted ? 0 : (uint64_t)m_core.get_start_time();
     res.free_space = m_restricted ? std::numeric_limits<uint64_t>::max() : m_core.get_free_space();
     res.offline = m_core.offline();
     res.bootstrap_daemon_address = m_bootstrap_daemon_address;