[gnome-commander] Fixes -Werror=format-nonliteral

[Uwe Scholz <uwescholz src gnome org>]

commit 5ecda6f9b08c1856b3c196d34e64f82377f3dd38
Author: Uwe Scholz <uwescholz src gnome org>
Date:   Sat Feb 25 22:58:47 2017 +0100

    Fixes -Werror=format-nonliteral

 src/gnome-cmd-con.h |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/src/gnome-cmd-con.h b/src/gnome-cmd-con.h
index 5e0b2ff..f3d33fe 100644
--- a/src/gnome-cmd-con.h
+++ b/src/gnome-cmd-con.h
@@ -373,7 +373,10 @@ inline gchar *gnome_cmd_con_get_free_space (GnomeCmdCon *con, GnomeCmdDir *dir,
     if (!free_space)
         return _("Unknown disk usage");
 
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wformat-nonliteral"
     gchar *retval = g_strdup_printf (fmt, free_space);
+#pragma GCC diagnostic pop
     g_free (free_space);
 
     return retval;