[epiphany] window: improve format specifiers

[Michael Catanzaro <mcatanzaro src gnome org>]

commit b6b0f2a6e7feae511dc5a10b064f796cac25b17e
Author: Michael Catanzaro <mcatanzaro gnome org>
Date:   Fri Dec 20 09:06:49 2019 -0600

    window: improve format specifiers
    
    This placates cppcheck.

 src/ephy-window.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/src/ephy-window.c b/src/ephy-window.c
index 8d0abd2fe..1ddbcc070 100644
--- a/src/ephy-window.c
+++ b/src/ephy-window.c
@@ -2518,9 +2518,9 @@ setup_tab_accels (EphyWindow *window)
     char *action_name_with_tab;
     char *accel;
 
-    action_name = g_strdup_printf ("accel-%d", i);
+    action_name = g_strdup_printf ("accel-%u", i);
     action_name_with_tab = g_strconcat ("tab.", action_name, NULL);
-    accel = g_strdup_printf ("<alt>%d", (i + 1) % TAB_ACCELS_N);
+    accel = g_strdup_printf ("<alt>%u", (i + 1) % TAB_ACCELS_N);
 
     simple_action = g_simple_action_new (action_name, NULL);