message: Change the update_version script to not add +1 to the minor version of TF for
  nightly builds.
diff: @@ -294,10 +294,8 @@ def main():
  new_version = Version.parse_from_string(args.version, NIGHTLY_VERSION)
  new_version.set_identifier_string("-dev" + time.strftime("%Y%m%d"))
  else:
  - # Dev minor version is one ahead of official.
  - nightly_minor_ver = int(old_version.minor) + 1
  new_version = Version(old_version.major,
  - str(nightly_minor_ver),
  + str(old_version.minor),
  old_version.patch,
  "-dev" + time.strftime("%Y%m%d"),
  NIGHTLY_VERSION)
  