[Fuchsia] Don't print debug log on ZX_ERR_NOT_FOUND

Change-Id: If877a101cacc223ec8d65b5f7e73b2802243de20
Reviewed-on: https://fuchsia-review.googlesource.com/c/third_party/mesa/+/423254
Reviewed-by: John Bauman <jbauman@google.com>
diff --git a/src/util/os_dirent_fuchsia.cpp b/src/util/os_dirent_fuchsia.cpp
index edfb76c..4e551b7 100644
--- a/src/util/os_dirent_fuchsia.cpp
+++ b/src/util/os_dirent_fuchsia.cpp
@@ -76,7 +76,8 @@
       zxio_dirent_t* dirent;
       zx_status_t status = zxio_dirent_iterator_next(&iterator, &dirent);
       if (status != ZX_OK) {
-         FUCHSIA_DLOG("zxio_dirent_iterator_next failed: %d", status);
+         if (status != ZX_ERR_NOT_FOUND)
+            FUCHSIA_DLOG("zxio_dirent_iterator_next failed: %d", status);
          return nullptr;
       }