Use curly braces with if statement to appease jshint gods
Use curly braces with if statement to appease jshint gods

I added a one line `if (!milestone) return;` in a previous pull request, which
caused a failure in jshint, which runs when building assets with grunt. This
rights that wrong.

iFixit/pulldasher,iFixit/pulldasher,iFixit/pulldasher,iFixit/pulldasher