[gtk] demos: Avoid shadowing a global from time.h

[Timm Bäder <baedert src gnome org>]

commit 8bee3e2fe0d907438138327ec807b315aa7b265d
Author: Timm Bäder <mail baedert org>
Date:   Fri Jun 5 06:26:25 2020 +0200

    demos: Avoid shadowing a global from time.h
    
    Sad but true.

 demos/gtk-demo/listview_clocks.c  | 6 +++---
 demos/gtk-demo/listview_weather.c | 4 ++--
 2 files changed, 5 insertions(+), 5 deletions(-)
---
diff --git a/demos/gtk-demo/listview_clocks.c b/demos/gtk-demo/listview_clocks.c
index 49108ac280..9b9a399aba 100644
--- a/demos/gtk-demo/listview_clocks.c
+++ b/demos/gtk-demo/listview_clocks.c
@@ -309,16 +309,16 @@ gtk_clock_init (GtkClock *self)
 
 static GtkClock *
 gtk_clock_new (const char *location,
-               GTimeZone  *timezone)
+               GTimeZone  *_timezone)
 {
   GtkClock *result;
 
   result = g_object_new (GTK_TYPE_CLOCK,
                          "location", location,
-                         "timezone", timezone,
+                         "timezone", _timezone,
                          NULL);
 
-  g_clear_pointer (&timezone, g_time_zone_unref);
+  g_clear_pointer (&_timezone, g_time_zone_unref);
 
   return result;
 }
diff --git a/demos/gtk-demo/listview_weather.c b/demos/gtk-demo/listview_weather.c
index 6d8221b36a..ed1ad24dfb 100644
--- a/demos/gtk-demo/listview_weather.c
+++ b/demos/gtk-demo/listview_weather.c
@@ -78,13 +78,13 @@ gtk_weather_info_new (GDateTime      *timestamp,
 
 static GDateTime *
 parse_timestamp (const char *string,
-                 GTimeZone  *timezone)
+                 GTimeZone  *_timezone)
 {
   char *with_seconds;
   GDateTime *result;
 
   with_seconds = g_strconcat (string, ":00", NULL);
-  result = g_date_time_new_from_iso8601 (with_seconds, timezone);
+  result = g_date_time_new_from_iso8601 (with_seconds, _timezone);
   g_free (with_seconds);
 
   return result;