[bind-backend] Clang-tidy use cpp header.

diff --git a/modules/bindbackend/bindbackend2.cc b/modules/bindbackend/bindbackend2.cc
index 902c9fa82c82d8dddf70b5e7d3d11f7bb7de2bea..d41993423f10c0c54dcd1322f432a90fad90ee38 100644 (file)
--- a/modules/bindbackend/bindbackend2.cc
+++ b/modules/bindbackend/bindbackend2.cc
@@ -23,7 +23,7 @@
 #ifdef HAVE_CONFIG_H
 #include "config.h"
 #endif
-#include <errno.h>
+#include <cerrno>
 #include <string>
 #include <set>
 #include <sys/types.h>