fix(bench press): Don’t use unicode in console reporter to prevent problems

Author: tbosch

modules/benchpress/src/reporter/console_reporter.js

@@ -84,7 +84,9 @@ export class ConsoleReporter extends Reporter {
  var mean = Statistic.calculateMean(sample);
  var cv = Statistic.calculateCoefficientOfVariation(sample, mean);
  var formattedCv = NumberWrapper.isNaN(cv) ? 'NaN' : Math.floor(cv);
- return `${ConsoleReporter._formatNum(mean)}\u00B1${formattedCv}%`;
+ // Note: Don't use the unicode character for +- as it might cause
+ // hickups consoles...
+ return `${ConsoleReporter._formatNum(mean)}+-${formattedCv}%`;
  })
  );
  return PromiseWrapper.resolve(null);

modules/benchpress/test/reporter/console_reporter_spec.js

@@ -92,7 +92,7 @@ export function main() {
  })]);
  expect(log).toEqual([
  '======== | ========',
- '4.00±25% | 7.50±20%'
+ '4.00+-25% | 7.50+-20%'
  ]);
  });