[file-roller] Use g_dpgettext2() instead of plain gettext for column headers.

[Paolo Bacchilega <paobac src gnome org>]

commit ceb62eb981ef79aadd798cb8a1e5b59e0560c539
Author: Gabor Kelemen <kelemeng gnome hu>
Date:   Mon May 2 11:22:11 2011 +0200

    Use g_dpgettext2() instead of plain gettext for column headers.
    
    Fixes: https://bugzilla.gnome.org/show_bug.cgi?id=649159

 src/fr-window.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/fr-window.c b/src/fr-window.c
index 4ae485a..743c8fe 100644
--- a/src/fr-window.c
+++ b/src/fr-window.c
@@ -4804,7 +4804,7 @@ add_file_list_columns (FrWindow    *window,
 		GValue  value = { 0, };
 
 		renderer = gtk_cell_renderer_text_new ();
-		column = gtk_tree_view_column_new_with_attributes (_(titles[j]),
+		column = gtk_tree_view_column_new_with_attributes (g_dpgettext2 (NULL, "File", titles[j]),
 								   renderer,
 								   "text", i,
 								   NULL);