[grilo] net: Fix wrong printf format under 32-bit

[Bastien Nocera <hadess src gnome org>]

commit 8ad058f7610efb01213a4a9bb5427b35a0ec3c83
Author: Rosen Penev <rosenp gmail com>
Date:   Sun Sep 20 00:53:25 2020 -0700

    net: Fix wrong printf format under 32-bit
    
    Found with -Wformat :
    
    In file included from ../src/grilo.h:31,
                     from ../libs/net/grl-net-wc.c:52:
    ../libs/net/grl-net-wc.c: In function 'get_url':
    ../libs/net/grl-net-wc.c:770:16: warning: format '%lu' expects argument
    of type 'long unsigned int', but argument 5 has type 'gint64' {aka
    'long long int'} [-Wformat=]
      770 |     GRL_DEBUG ("delaying web request by %lu seconds",
          |                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      771 |                priv->last_request - now);
          |                ~~~~~~~~~~~~~~~~~~~~~~~~
          |                                   |
          |                                   gint64 {aka long long int}

 libs/net/grl-net-wc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/libs/net/grl-net-wc.c b/libs/net/grl-net-wc.c
index 9bd49223..5a8e89f5 100644
--- a/libs/net/grl-net-wc.c
+++ b/libs/net/grl-net-wc.c
@@ -767,7 +767,7 @@ get_url (GrlNetWc *self,
   } else {
     priv->last_request += priv->throttling;
 
-    GRL_DEBUG ("delaying web request by %lu seconds",
+    GRL_DEBUG ("delaying web request by %" G_GINT64_FORMAT " seconds",
                priv->last_request - now);
     id = g_timeout_add_seconds_full (G_PRIORITY_DEFAULT,
                                      priv->last_request - now,