[gnumeric] Compilation: avoid clang warning

[Morten Welinder <mortenw src gnome org>]

commit f9e3e2142e41b186bacb0512094360ad6541d05c
Author: Morten Welinder <terra gnome org>
Date:   Sat Feb 16 13:54:19 2013 -0500

    Compilation: avoid clang warning
    
    (Which is an error in this case and terminates compilation)

 src/print.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/src/print.c b/src/print.c
index 7b9529e..1940f42 100644
--- a/src/print.c
+++ b/src/print.c
@@ -1312,6 +1312,7 @@ gnm_begin_print_cb (GtkPrintOperation *operation,
                                                       GTK_DIALOG_DESTROY_WITH_PARENT,
                                                       GTK_MESSAGE_INFO,
                                                       GTK_BUTTONS_CANCEL,
+                                                      "%s", /* please clang */
                                                       pi->preview ?
                                                       _("Preparing to preview"):
                                                       _("Preparing to print"));