message: Return error if FIPS status is in undefined state.
diff: @@ -28,7 +28,7 @@ crypto::tink::util::Status ChecksFipsCompatibility(
  case FipsCompatibility::kNotFips:
  if (kUseOnlyFips) {
  return util::Status(util::error::INTERNAL,
  - "Primitive not available in FIPS only mode");
  + "Primitive not available in FIPS only mode.");
  } else {
  return util::OkStatus();
  }
  @@ -43,6 +43,9 @@ crypto::tink::util::Status ChecksFipsCompatibility(
  } else {
  return util::OkStatus();
  }
  + default:
  + util::Status(util::error::INTERNAL,
  + "Could not determine FIPS status.");
  }
  }
  