Merge rust-bitcoin#5049: chore: fix inconsistent comments and typos

4732fdb docs: fix typo (radik878)
5cd1201 docs: fix inconsistent comment (radik878)
94e598b docs: fix inconsistance in comment (radik878)

Pull request description:

  Fixed some mismatches and typos in code comments


ACKs for top commit:
  tcharding:
    ACK 4732fdb
  apoelstra:
    ACK 4732fdb; successfully ran local tests


Tree-SHA512: 3738403d13f0bcdbda44248e600ea905aa80fe57ad049e273bf9d430d6a3a9e7a72256db61c4a9e234de4db669693442c0bcaadb073974a798cd2dcdf3c775a4

Author: apoelstra

bitcoin/src/psbt/map/input.rs

@@ -51,7 +51,7 @@ const PSBT_IN_HASH256: u64 = 0x0d;
 const PSBT_IN_TAP_KEY_SIG: u64 = 0x13;
 /// Type: Taproot Signature in Script Spend PSBT_IN_TAP_SCRIPT_SIG = 0x14
 const PSBT_IN_TAP_SCRIPT_SIG: u64 = 0x14;
-/// Type: Taproot Leaf Script PSBT_IN_TAP_LEAF_SCRIPT = 0x14
+/// Type: Taproot Leaf Script PSBT_IN_TAP_LEAF_SCRIPT = 0x15
 const PSBT_IN_TAP_LEAF_SCRIPT: u64 = 0x15;
 /// Type: Taproot Key BIP-0032 Derivation Path PSBT_IN_TAP_BIP32_DERIVATION = 0x16
 const PSBT_IN_TAP_BIP32_DERIVATION: u64 = 0x16;

bitcoin/src/psbt/map/output.rs

@@ -22,7 +22,7 @@ const PSBT_OUT_TAP_TREE: u64 = 0x06;
 const PSBT_OUT_TAP_BIP32_DERIVATION: u64 = 0x07;
 /// Type: MuSig2 Public Keys Participating in Aggregate Output PSBT_OUT_MUSIG2_PARTICIPANT_PUBKEYS = 0x08
 const PSBT_OUT_MUSIG2_PARTICIPANT_PUBKEYS: u64 = 0x08;
-/// Type: Proprietary Use Type PSBT_IN_PROPRIETARY = 0xFC
+/// Type: Proprietary Use Type PSBT_OUT_PROPRIETARY = 0xFC
 const PSBT_OUT_PROPRIETARY: u64 = 0xFC;
 
 /// A key-value map for an output of the corresponding index in the unsigned

bitcoin/src/psbt/mod.rs

@@ -671,7 +671,7 @@ impl Psbt {
         Ok(output_type.signing_algorithm())
     }
 
-    /// Returns the [`OutputType`] of the spend utxo for this PBST's input at `input_index`.
+    /// Returns the [`OutputType`] of the spend utxo for this PSBT's input at `input_index`.
     fn output_type(&self, input_index: usize) -> Result<OutputType, SignError> {
         let input = self.checked_input(input_index)?;
         let utxo = self.spend_utxo(input_index)?;
@@ -1088,7 +1088,7 @@ impl fmt::Display for SignError {
         match *self {
             IndexOutOfBounds(ref e) => write_err!(f, "index out of bounds"; e),
             InvalidSighashType => write!(f, "invalid sighash type"),
-            MissingInputUtxo => write!(f, "missing input utxo in PBST"),
+            MissingInputUtxo => write!(f, "missing input utxo in PSBT"),
             MissingRedeemScript => write!(f, "missing redeem script"),
             MissingSpendUtxo => write!(f, "missing spend utxo in PSBT"),
             MissingWitnessScript => write!(f, "missing witness script"),
@@ -1213,14 +1213,14 @@ pub enum IndexOutOfBoundsError {
     Inputs {
         /// Attempted index access.
         index: usize,
-        /// Length of the PBST inputs vector.
+        /// Length of the PSBT inputs vector.
         length: usize,
     },
     /// The index is out of bounds for the `psbt.unsigned_tx.input` vector.
     TxInput {
         /// Attempted index access.
         index: usize,
-        /// Length of the PBST's unsigned transaction input vector.
+        /// Length of the PSBT's unsigned transaction input vector.
         length: usize,
     },
 }