`safe "this"` -> `save a reference to "this"`

Mike

On Tue, Feb 11, 2014 at 5:25 AM, Marat Dulin <notifications@github.com>
wrote:

>>                  ) {
>>                      errors.add(
>> -                        'You should use "' + keyword + '" to safe "this"',
>> +                        'You should use "' + keywords.join('" or "') + '" to safe "this"',
> Which text do you wish to get?
> ---
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> https://github.com/mdevils/node-jscs/pull/225/files#r9623212