message: Avoid 1 << 31 (UB) in calculation of SEQUENCE_LOCKTIME_DISABLE_FLAG
diff: @@ -73,7 +73,7 @@ public:
  /* Below flags apply in the context of BIP 68*/
  /* If this flag set, CTxIn::nSequence is NOT interpreted as a
  * relative lock-time. */
  - static const uint32_t SEQUENCE_LOCKTIME_DISABLE_FLAG = (1 << 31);
  + static const uint32_t SEQUENCE_LOCKTIME_DISABLE_FLAG = (1U << 31);
  /* If CTxIn::nSequence encodes a relative lock-time and this flag
  * is set, the relative lock-time has units of 512 seconds,
  