Opaque error message when json file is empty

[jtrain]

To reproduce:

• create a standard punch setup
  punch setup .
• create an empty content file touch contents/index.json and a template curl t.co > templates/index.mustache
• serve punch s

What I expect to happen:
An error message warning of the empty index.json file

What I get instead:

Server is running on localhost:9009
Generating the site...

undefined:0

^
SyntaxError: Unexpected end of input
    at Object.parse (native)
    at /usr/local/lib/node_modules/punch/lib/generator.js:130:26
    at [object Object].<anonymous> (fs.js:123:5)
    at [object Object].emit (events.js:64:17)
    at Object.oncomplete (fs.js:1190:12)

[laktek]

This issue is fixed in Punch 0.4.0 (which was released today). Please check again after upgrading to it.