message: update comments in connection-id encoder
  Summary: The comments got out-of-sync from the actual code. This fixes it
diff: @@ -28,7 +28,7 @@ constexpr uint8_t kWorkerIdSecondByteMask = 0x03;
  constexpr uint8_t kShortVersionBitsMask = 0xc0;
  /**
  - * Sets the short version id bits (0 - 3) into the given ConnectionId
  + * Sets the short version id bits (0 - 1) into the given ConnectionId
  */
  void setVersionBitsInConnId(quic::ConnectionId& connId, uint8_t version) {
  if (connId.size() < quic::kMinConnectionIdSize) {
  @@ -80,7 +80,7 @@ void setHostIdBitsInConnId(quic::ConnectionId& connId, uint16_t hostId) {
  }
  /**
  - * Extract the host id bits [4 - 15] bits from the given ConnectionId
  + * Extract the host id bits [2 - 17] bits from the given ConnectionId
  */
  uint16_t getHostIdBitsInConnId(const quic::ConnectionId& connId) {
  if (connId.size() < quic::kMinConnectionIdSize) {
  @@ -101,7 +101,7 @@ uint16_t getHostIdBitsInConnId(const quic::ConnectionId& connId) {
  }
  /**
  - * Sets the given 8-bit workerId into the given connectionId's 16-23 bits
  + * Sets the given 8-bit workerId into the given connectionId's 18-25 bits
  */
  void setWorkerIdBitsInConnId(quic::ConnectionId& connId, uint8_t workerId) {
  if (connId.size() < quic::kMinConnectionIdSize) {
  @@ -136,7 +136,7 @@ uint8_t getWorkerIdFromConnId(const quic::ConnectionId& connId) {
  }
  /**
  - * Sets the server id bit (at 24th bit) into the given ConnectionId
  + * Sets the server id bit (at 26th bit) into the given ConnectionId
  */
  void setProcessIdBitsInConnId(quic::ConnectionId& connId, uint8_t processId) {
  if (connId.size() < quic::kMinConnectionIdSize) {
  