Validation skipped

[Tazkazz]

On this line of code there's validation for fmt to be a string:

node-progress/lib/node-progress.js

Line 54 in 30d70d9

if ('string' != typeof fmt) throw new Error('format required');

But if the second argument, passed to constructor, is a number (total), this validation is skipped and, later on, the rendering fails.