[gegl] gegl: mark commandline help string for translation

[Øyvind "pippin" Kolås <ok src gnome org>]

commit 8e02bd2f345f66601ff9008f90b17ddcecf3aa28
Author: Øyvind Kolås <pippin gimp org>
Date:   Sun Dec 6 15:32:29 2020 +0100

    gegl: mark commandline help string for translation
    
    Fixing issue #268.

 gegl/gegl-init.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/gegl/gegl-init.c b/gegl/gegl-init.c
index 2dfbbd8d3..d9af0842b 100644
--- a/gegl/gegl-init.c
+++ b/gegl/gegl-init.c
@@ -256,7 +256,7 @@ gegl_get_option_group (void)
 
   gegl_init_i18n ();
 
-  group = g_option_group_new ("gegl", "GEGL Options", "Show GEGL Options",
+  group = g_option_group_new ("gegl", "GEGL Options", _("Show GEGL Options"),
                               NULL, NULL);
   g_option_group_add_entries (group, cmd_entries);