[glabels] Added translation context for "Select Product" (Bug #763003).

[Jim Evins <jimevins src gnome org>]

commit e01876e717695564d7bf8720eaab5e428ddfcea2
Author: Jim Evins <evins snaught com>
Date:   Sun Mar 6 16:13:57 2016 -0500

    Added translation context for "Select Product" (Bug #763003).

 src/new-label-dialog.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)
---
diff --git a/src/new-label-dialog.c b/src/new-label-dialog.c
index 308974f..07807ae 100644
--- a/src/new-label-dialog.c
+++ b/src/new-label-dialog.c
@@ -209,7 +209,9 @@ gl_new_label_dialog_init (glNewLabelDialog *this)
         this->priv->builder = builder;
 
         gtk_assistant_append_page (GTK_ASSISTANT (this), this->priv->template_page_vbox);
-        gtk_assistant_set_page_title (GTK_ASSISTANT (this), this->priv->template_page_vbox, _("Select 
Product"));
+        gtk_assistant_set_page_title (GTK_ASSISTANT (this), this->priv->template_page_vbox,
+                                      C_("Title of dialog page to select a stationary product",
+                                         "Select Product"));
         gtk_assistant_set_page_type (GTK_ASSISTANT (this), this->priv->template_page_vbox, 
GTK_ASSISTANT_PAGE_INTRO);
         gtk_widget_override_background_color (page_1_banner_eventbox, GTK_STATE_NORMAL, &banner_color);
         logo_filename = g_build_filename (GLABELS_DATA_DIR, "pixmaps", "new-select.png", NULL);