code: function writeSpecFile(grunt, options, filesToPack) {
  	return function(callback) {
  		try {
  			var specPath = path.join(options.destination, specFolder);
  			options.files = filesToPack;
  			var pkg = grunt.file.readJSON('package.json');
  			grunt.util._.defaults(options, pkg);
  			
  			options.specFilepath = path.join(specPath, options.name + '.spec');
  			spec(options, callback);
  		} catch(e) {
  			callback(e);
  		}
  	};
  }
docs: Write the spec file that rpmbuild will read for the rpm details