rgw/rgw_client_io_filters.h: print size_t the portable way

Signed-off-by: Kefu Chai <kchai@redhat.com>

diff --git a/src/rgw/rgw_client_io_filters.h b/src/rgw/rgw_client_io_filters.h
index 9ce83a936634c62866fe2776c71f4748276b7164..19a263a7dfb3dfede06e9da1b9682b2e6631bddc 100644 (file)
--- a/src/rgw/rgw_client_io_filters.h
+++ b/src/rgw/rgw_client_io_filters.h
@@ -291,7 +291,7 @@ public:
       // extensions/trailing headers.
       char chunk_size[32];
       const auto chunk_size_len = snprintf(chunk_size, sizeof(chunk_size),
-                                           "%" PRIx64 "\r\n", len);
+                                           "%zx\r\n", len);
       size_t sent = 0;
 
       sent += DecoratedRestfulClient<T>::send_body(chunk_size, chunk_size_len);