[goffice] I18N: Avoid _("").

[Morten Welinder <mortenw src gnome org>]

commit ad499012b91b79f7321c11eb35c04d831a3bc8fb
Author: Morten Welinder <terra gnome org>
Date:   Wed Aug 26 21:05:22 2009 -0400

    I18N: Avoid _("").

 goffice/app/file.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/goffice/app/file.c b/goffice/app/file.c
index 1073aa2..d9bc3e0 100644
--- a/goffice/app/file.c
+++ b/goffice/app/file.c
@@ -509,7 +509,7 @@ go_file_saver_class_init (GOFileSaverClass *klass)
 		 FS_PROP_FORMAT_LEVEL,
 		 g_param_spec_enum ("format-level",
 				    _("Format Level"),
-				    _(""),
+				    "?",
 				    GO_TYPE_FILE_SAVER_LEVEL,
 				    GO_FILE_FL_NEW,
 				    GSF_PARAM_STATIC |