Update baseapp/abci_utils.go

Signed-off-by: yihuang <huang@crypto.com>

baseapp/abci_utils.go

@@ -293,7 +293,7 @@ func (h *DefaultProposalHandler) PrepareProposalHandler() sdk.PrepareProposalHan
 		h.mempool.SelectBy(ctx, req.Txs, func(memTx mempool.Tx) bool {
 			signerData, err := h.signerExtAdapter.GetSigners(memTx.Tx)
 			if err != nil {
-				// propogate the error to the caller
+				// propagate the error to the caller
 				resError = err
 				return false
 			}