gnome-wall-clock.c: Update default date-time formats to adapt to

GDateTime change.

The %l, %e and %k tokens now have additional leading space when
rendering a single digit number.

Currently:
'%A %B %e, %l:%M %p' -> 'Wednesday May  8,  1:03 AM'

With this commit:
'%A %B %-e, %-l:%M %p' -> 'Wednesday May 8, 1:03 AM'

ref:
https://gitlab.gnome.org/GNOME/glib/-/commit/7074122f308b7b3402fba250f2010778fdad6eff
https://gitlab.gnome.org/GNOME/glib/-/commit/7169f6e1e58a53e4b69e5d40f3fd192dd9cd8ed4

libcinnamon-desktop/gnome-wall-clock.c

@@ -66,31 +66,31 @@ G_DEFINE_TYPE_WITH_PRIVATE (GnomeWallClock, gnome_wall_clock, G_TYPE_OBJECT);
 
 /* Default date format (typically matching date portion of WITH_DATE_* defaults.)
  * Currently used by cinnamon-screensaver default clock */
-#define DATE_ONLY             (_("%A, %B %e"))
+#define DATE_ONLY             (_("%A, %B %-e"))
 
 /* Default date/time format when show-date, show-seconds, use-24h are set */
-#define WITH_DATE_24H_SECONDS (_("%A %B %e, %R:%S"))
+#define WITH_DATE_24H_SECONDS (_("%A %B %-e, %R:%S"))
 
 /* Default date/time format when show-date, show-seconds are set */
-#define WITH_DATE_12H_SECONDS (_("%A %B %e, %l:%M:%S %p"))
+#define WITH_DATE_12H_SECONDS (_("%A %B %-e, %-l:%M:%S %p"))
 
 /* Default date/time format when show-date, use-24h are set */
-#define WITH_DATE_24H         (_("%A %B %e, %R"))
+#define WITH_DATE_24H         (_("%A %B %-e, %R"))
 
 /* Default date/time format when just show-date is set */
-#define WITH_DATE_12H         (_("%A %B %e, %l:%M %p"))
+#define WITH_DATE_12H         (_("%A %B %-e, %-l:%M %p"))
 
 /* Default date/time format when show-seconds, use-24h are set */
 #define NO_DATE_24H_SECONDS   (_("%R:%S"))
 
 /* Default date/time format when just show-seconds is set */
-#define NO_DATE_12H_SECONDS   (_("%l:%M:%S %p"))
+#define NO_DATE_12H_SECONDS   (_("%-l:%M:%S %p"))
 
 /* Default date/time format when just use-24h is set */
 #define NO_DATE_24H           (_("%R"))
 
 /* Default date/time format with no options are set */
-#define NO_DATE_12H           (_("%l:%M %p"))
+#define NO_DATE_12H           (_("%-l:%M %p"))
 
 #define NO_DATE               ("")