[gnome-terminal] util: Fix deprecation warning

[Christian Persch <chpe src gnome org>]

commit adb52bc4bff8cce733a7b31d63e0b4ae3df3d021
Author: Christian Persch <chpe src gnome org>
Date:   Fri Jun 4 20:13:18 2021 +0200

    util: Fix deprecation warning

 src/terminal-util.cc | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/src/terminal-util.cc b/src/terminal-util.cc
index 48f6f8c9..db3a756c 100644
--- a/src/terminal-util.cc
+++ b/src/terminal-util.cc
@@ -1442,8 +1442,10 @@ terminal_util_save_print_settings (GtkPrintSettings *settings,
 const char*
 terminal_util_translate_encoding (const char *encoding)
 {
+  G_GNUC_BEGIN_IGNORE_DEPRECATIONS;
   if (vte_get_encoding_supported (encoding))
     return encoding;
+  G_GNUC_END_IGNORE_DEPRECATIONS;
 
   /* ICU knows (or has aliases for) most of the old names, except the following */
   struct {