code: function authorsLog() {
  			// Generate list of authors/contributors since last tag/release
  			if (!options.authors) {
  				if (options.authorsRequired) {
  					throw new Error('Invalid "options.authors": "' + options.authors + '" ("options.authorsRequired": '
  							+ options.authorsRequired + '"');
  				}
  				return;
  			}
  			var athrsPath = path.join(options.distDir, options.authors);
  			athrsRtn = cmd('git --no-pager shortlog -sen HEAD > ' + athrsPath, null, false, athrsPath,
  					options.authorsSkipLineRegExp)
  					|| '';
  			utils.validateFile(athrsPath, rollCall);
  		}
docs: Generates/Writes an authors log for the current release using all
  authors since last tag/release