[gupnp-tools] av-cp: Use g_memdup2 where available

[Jens Georg <jensgeorg src gnome org>]

commit 6359cc4bdea34a61ef8d6b18ec06748028a186fa
Author: Jens Georg <mail jensge org>
Date:   Thu May 20 16:46:15 2021 +0200

    av-cp: Use g_memdup2 where available

 src/universal-cp/event-treeview.c | 4 ++++
 1 file changed, 4 insertions(+)
---
diff --git a/src/universal-cp/event-treeview.c b/src/universal-cp/event-treeview.c
index f9d9cd1..4d8f2a2 100644
--- a/src/universal-cp/event-treeview.c
+++ b/src/universal-cp/event-treeview.c
@@ -309,7 +309,11 @@ get_display_value (const char *value)
         if (size > MAX_VALUE_SIZE)
                 size = MAX_VALUE_SIZE;
 
+#if GLIB_CHECK_VERSION(2,68,0)
+        display_value = g_memdup2 (value, size + 1);
+#else
         display_value = g_memdup (value, size + 1);
+#endif
         display_value[size] = '\0';
 
         return display_value;