Variable names within arithmetic expressions are evaluated even without the '$' prefix.
The config() function of irqstats seems to contain a superfluous semicolon, causing munin to choke on this plugin. This simple patch fixes exactly that. Source: patch "240-fix-irqstats" from OpenWrt Author: Jorik Jonker
git-svn-id: svn://svn.code.sf.net/p/muninlite/code/muninlite@1 35caa317-6b62-4e8a-81c0-b04f0c356266