silence signed/unsigned warning
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@@ -1787,7 +1787,7 @@ process_ecs(ns_client_t *client, isc_buffer_t *buf, size_t optlen) {
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isc_netaddr_t caddr;
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int i;
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if (optlen < 4) {
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if (optlen < 4U) {
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ns_client_log(client, NS_LOGCATEGORY_CLIENT,
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NS_LOGMODULE_CLIENT, ISC_LOG_DEBUG(2),
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"EDNS client subnet option too short");
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