Index: tshark.c
===================================================================
--- tshark.c	(revision 37836)
+++ tshark.c	(working copy)
@@ -3637,9 +3637,8 @@
 static void
 open_failure_message(const char *filename, int err, gboolean for_writing)
 {
-  fprintf(stderr, "tshark: ");
-  fprintf(stderr, file_open_error_message(err, for_writing), filename);
-  fprintf(stderr, "\n");
+  gchar *string = g_strdup_printf (file_open_error_message(err, for_writing), filename);
+  fprintf(stderr, "tshark: %s\n", g_locale_from_utf8(string, -1, NULL, NULL, NULL));
 }
 
 
@@ -3649,9 +3648,8 @@
 static void
 failure_message(const char *msg_format, va_list ap)
 {
-  fprintf(stderr, "tshark: ");
-  vfprintf(stderr, msg_format, ap);
-  fprintf(stderr, "\n");
+  gchar *string = g_strdup_vprintf (msg_format, ap);
+  fprintf(stderr, "tshark: %s\n", g_locale_from_utf8(string, -1, NULL, NULL, NULL));
 }
 
 /*