cli: Ignore broken pipe errors

BUG:FIXED:13609

pisi-cli

 #!/usr/bin/python
 #
-# Copyright (C) 2005 - 2007, TUBITAK/UEKAE
+# Copyright (C) 2005 - 2010, TUBITAK/UEKAE
 #
 # This program is free software; you can redistribute it and/or modify it under
 # the terms of the GNU General Public License as published by the Free
@@ -11,6 +11,7 @@
 #
 
 import sys
+import errno
 import locale
 import traceback
 import exceptions
@@ -47,6 +48,9 @@ def handle_exception(exception, value, tb):
         show_traceback = True
         ui.error(_("Unhandled internal exception.\n"
                    "Please file a bug report to <http://bugs.pardus.org.tr>."))
+    elif isinstance(value, IOError) and value.errno == errno.EPIPE:
+        # Ignore broken pipe errors
+        sys.exit(0)
     else:
         # For any other exception (possibly Python exceptions) show
         # the traceback!