[libglnx/wip/smcv/warnings: 5/7] tests: Make iterator signedness agree with limit

[Simon McVittie <smcv src gnome org>]

commit 4c51a54c36eb1a9d728acb14a700271adc7e0ee4
Author: Simon McVittie <smcv collabora com>
Date:   Sun Apr 24 11:06:51 2022 +0100

    tests: Make iterator signedness agree with limit
    
    g_variant_n_children() returns a size_t (or gsize, which is equivalent)
    so in principle it could overflow an int, although in practice we are
    not going to have that many extended attributes. This silences a
    warning from gcc -Wsign-compare.
    
    Signed-off-by: Simon McVittie <smcv collabora com>

 tests/test-libglnx-xattrs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/tests/test-libglnx-xattrs.c b/tests/test-libglnx-xattrs.c
index b72b0d0..ad52b76 100644
--- a/tests/test-libglnx-xattrs.c
+++ b/tests/test-libglnx-xattrs.c
@@ -122,7 +122,7 @@ do_write_run (GLnxDirFdIterator *dfd_iter, GError **error)
           if (!glnx_fd_get_all_xattrs (fd, &current_xattrs, NULL, error))
             return FALSE;
 
-          for (int i = 0; i < g_variant_n_children (current_xattrs); i++)
+          for (size_t i = 0; i < g_variant_n_children (current_xattrs); i++)
             {
               const char *name, *value;
               g_variant_get_child (current_xattrs, i, "(^&ay^&ay)", &name, &value);