Title: Views: Fixed graph showing views of services with invalid perfdata
Level: 1
Component: multisite
Compatible: compat
Version: 1.2.8p18
Date: 1487930278
Class: fix

Some checks that produced invalid perfdata like 'key=" "' were causing the
metric parsing to crash with a "IndexError (list index out of range)" error.

The metric parsing is now skipping those invalid values.
