[gimp] app: do not use gimp_filename_to_utf8() in the signal handler.

[Jehan Pagès <jehanp src gnome org>]

commit f77edcdf193e8c7b3117f797ec3daddccb5e4b20
Author: Jehan <jehan girinstud io>
Date:   Mon Apr 9 06:08:48 2018 +0200

    app: do not use gimp_filename_to_utf8() in the signal handler.
    
    This function is unsafe during signal handling. And in any case, when
    printing to stderr, I don't think we need to convert to UTF-8. Quite the
    contrary, the system encoding may be more appropriate.

 app/errors.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)
---
diff --git a/app/errors.c b/app/errors.c
index 6d63b2d..ff0b8e0 100644
--- a/app/errors.c
+++ b/app/errors.c
@@ -325,8 +325,7 @@ gimp_eek (const gchar *reason,
 
   /* Let's just always output on stdout at least so that there is a
    * trace if the rest fails. */
-  g_printerr ("%s: %s: %s\n", gimp_filename_to_utf8 (full_prog_name),
-              reason, message);
+  g_printerr ("%s: %s: %s\n", full_prog_name, reason, message);
 
 #if ! defined (G_OS_WIN32) || defined (HAVE_EXCHNDL)