"Passed/Failed" output was confusing, as seen in https://code.google.com/p/chromium...

"Passed/Failed" output was confusing, as seen in https://code.google.com/p/chromium/issues/detail?id=269543. Change output to 'good' and 'bad'.

Sample output:

Full results of bisection:
  chromium  255620da4ddf6f59947d9e77529f54ad02d9af12  Bad
  chromium  6a1162f6cff7d33880f5e03fb9bb3909d84e7beb  ?
  chromium  c3119752b17b5ab4605f0404909e6a1cb73de399  ?
  chromium  ee823c5c4e8bcbfd1b16eab28ec800590c31000f  ?
  chromium  8b9445f3fb0c27e250ba34c4f6572573747677a3  ?
  chromium  5b97ce5f0a4e46bd4ad0cf18c110486525eb9e3e  ?
  chromium  e4228b4723fa71fed40e83aff89f78423a5cb73b  ?
  chromium  0731029d816d3389f584a19128a33e801956ffb8  ?
  chromium  a31e8905fe2e4ff87d2357082047d4135a9d90b3  ?
  chromium  43d2a97cff85bc6404bdce12bca570d78c3335f6  ?
  chromium  37102899730f0a377b46d3cebd3f134ebb8f1ed9  ?
  chromium  2bad2a20ff9a715bd6e146ab35dec39cd7168089  Bad
  chromium  bb12f0401c33877d6c0ab79e6c4377e9e8480cce  ?
  chromium  41e96753103a24e1b1ca00110091f8f62774b971  ?
  chromium  fd80f69d358b8b55c65895b402d4600f46beb5a8  ?
  chromium  ad8c3254bf52590ea093a3a41df907edd14a1a55  ?
  chromium  d20f84073e640a68ea41570646fbefde6d9688b7  Bad
  chromium  c5d4651e389d5b1aade3cd665462466afc9bb370  ?
  chromium  32a05dd7e72f84031dd56f697a9f5bd16b766264  Bad
  chromium  bba1c0dd96a86164c346347098295ff6cd8ae474  Skipped
  chromium  692ab20148291d0b052cccdf00a53446e23d6552  Bad
  chromium  f79eb4a29ae4283035578e1d8b192c5788669f1a  Bad
  chromium  cd8436cb560a398e1927cc6f11cab9db0a0c9210  Good

Tested commits:
   Depot                   Commit SHA                     Mean       Std. Error       State
  chromium  255620da4ddf6f59947d9e77529f54ad02d9af12       0.00        +-0.00          Bad
  chromium  2bad2a20ff9a715bd6e146ab35dec39cd7168089       0.00        +-0.00          Bad
  chromium  d20f84073e640a68ea41570646fbefde6d9688b7       0.00        +-0.00          Bad
  chromium  32a05dd7e72f84031dd56f697a9f5bd16b766264       0.00        +-0.00          Bad
  chromium  692ab20148291d0b052cccdf00a53446e23d6552       0.00        +-0.00          Bad

  chromium  f79eb4a29ae4283035578e1d8b192c5788669f1a       0.00        +-0.00      Suspected CL

  chromium  cd8436cb560a398e1927cc6f11cab9db0a0c9210       0.00        +-0.00          Good

Confidence in Bisection Results: 0%

BUG=269543

Review URL: https://chromiumcodereview.appspot.com/23125029

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@219618 0039d316-1c4b-4281-b951-d872f2087c98