Enable no-redeclare
Enable no-redeclare

Disallow Redeclaring Variables (no-redeclare)

In JavaScript, it's possible to redeclare the same variable name
using var. This can lead to confusion as to where the variable is
actually declared and initialized.

http://eslint.org/docs/rules/no-redeclare

Change-Id: I0ef2febe67700532d748327f9a0f10f846c7ae80

openstack/eslint-config-openstack