yui/yui-lint — pull request #6 by okuryu (2013-10-19 08:14:49+00:00)
Title: Add undef rule as default

Recently, I've met a problem with undeclared variable (see yui/yui3#1307). So I'd like to add the `undef` option of JSHint into `yui-lint` as default. This option is useful for spotting leaking and mistyped variables.