(maint) Corrects manual edit in generated eparser.rb

NEVER CHANGE A GENERATED FILE! There is a big warning at the top
of the file!

In this case, the puppet/util/loadedfile.rb was removed and the
egrammar.ra file contained a require of this file. A manual edit was
made of the generated egrammar.rb where the require was removed. This
means that on the next regeneration of the grammar this require
reappears.

This corrects this mistake.
Merge branch 'master' of https://github.com/puppetlabs/puppet