[gtk+] docs: fix links to print api

[William Jon McCann <mccann src gnome org>]

commit 0a16518bcfeff6ac6c3b3566b774300f0e1a2c89
Author: William Jon McCann <william jon mccann gmail com>
Date:   Tue Jan 21 15:58:33 2014 -0500

    docs: fix links to print api

 gtk/gtkpagesetupunixdialog.c |    2 +-
 gtk/gtkprintunixdialog.c     |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/gtk/gtkpagesetupunixdialog.c b/gtk/gtkpagesetupunixdialog.c
index 5601aef..4225f4c 100644
--- a/gtk/gtkpagesetupunixdialog.c
+++ b/gtk/gtkpagesetupunixdialog.c
@@ -54,7 +54,7 @@
  * which don't provide a native page setup dialog, like Unix. It can
  * be used very much like any other GTK+ dialog, at the cost of
  * the portability offered by the <link
- * linkend="gtk-High-level-Printing-API">high-level printing API</link>
+ * linkend="gtk3-High-level-Printing-API">high-level printing API</link>
  *
  * Printing support was added in GTK+ 2.10.
  */
diff --git a/gtk/gtkprintunixdialog.c b/gtk/gtkprintunixdialog.c
index acbfc3c..531f772 100644
--- a/gtk/gtkprintunixdialog.c
+++ b/gtk/gtkprintunixdialog.c
@@ -68,7 +68,7 @@
  * which don't provide a native print dialog, like Unix. It can
  * be used very much like any other GTK+ dialog, at the cost of
  * the portability offered by the
- * <link linkend="gtk-High-level-Printing-API">high-level printing API</link>
+ * <link linkend="gtk3-High-level-Printing-API">high-level printing API</link>
  *
  * In order to print something with #GtkPrintUnixDialog, you need
  * to use gtk_print_unix_dialog_get_selected_printer() to obtain