Display printerdata values in hex.

source/python/gprinterdata

@@ -1,7 +1,7 @@
 #!/usr/bin/env python
 
 import sys
-from gtkdictbrowser import GtkDictBrowser
+from gtkdictbrowser import GtkDictBrowser, hex_string
 import gtk
 import spoolss
 import string
@@ -33,6 +33,7 @@ except:
 # Create interface
 
 db = GtkDictBrowser(t)
+db.register_get_value_text_fn("", hex_string)
 db.build_ui('gprinterdata')
 
 # Override Python's handling of ctrl-c so we can break out of the