[chef] Cookbook Template: Populating MAC address in ifcfg

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Hello,

I'm trying to set up an ifcfg file using a template.

HWADDR=<%= node[:network][:interfaces][:eth1][:addresses].keys %>

The MAC address populates the file but the entry is surrounded by brackets 
like
below.

HWADDR=["00:00:00:00:00:00"]

How can I get to - HWADDR=00:00:00:00:00:00

or is there a more efficent way to build the file?

Thanks for the help.