function parseFileSync (filename) {
  var inxml = fs.readFileSync(filename, 'utf8');
  return parse.parseStringSync(inxml);
}
Parses file `filename` as a .plist file.
Returns a  when done.

@param {String} filename - name of the file to read
@param {Function} fn - callback function
@api public
@deprecated use parseStringSync() instead