chore: remove extra spaces in the comment

Signed-off-by: spuradage <[email protected]>

Author: spuradage

bitcoin/examples/sighash.rs

@@ -86,7 +86,7 @@ fn compute_sighash_legacy(raw_tx: &[u8], inp_idx: usize, script_pubkey_bytes_opt
         "first in ScriptSig must be PUSHBYTES_0 got {pushbytes_0:?}"
     );
 
-    //All other scriptSig instructions  must be signatures
+    //All other scriptSig instructions must be signatures
     for instr in instructions {
         let sig = ecdsa::Signature::from_slice(instr.unwrap().push_bytes().unwrap().as_bytes())
             .expect("failed to parse sig");

bitcoin/src/crypto/key.rs

@@ -884,7 +884,7 @@ pub type UntweakedKeypair = Keypair;
 /// # let keypair = TweakedKeypair::dangerous_assume_tweaked(Keypair::new(&secp, &mut rand::thread_rng()));
 /// // There are various conversion methods available to get a tweaked pubkey from a tweaked keypair.
 /// let (_pk, _parity) = keypair.public_parts();
-/// let _pk  = TweakedPublicKey::from_keypair(keypair);
+/// let _pk = TweakedPublicKey::from_keypair(keypair);
 /// let _pk = TweakedPublicKey::from(keypair);
 /// # }
 /// ```

bitcoin/src/taproot/mod.rs

@@ -1678,7 +1678,7 @@ impl fmt::Display for InvalidControlBlockSizeError {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         write!(
             f,
-            "Control Block size({}) must be of the form 33 + 32*m where  0 <= m <= {} ",
+            "Control Block size({}) must be of the form 33 + 32*m where 0 <= m <= {} ",
             self.0, TAPROOT_CONTROL_MAX_NODE_COUNT
         )
     }