solana: more close fast market order fixes

Author: a5-pickle

solana/programs/matching-engine/src/fallback/processor/close_fast_market_order.rs

@@ -8,7 +8,7 @@ pub struct CloseFastMarketOrderAccounts<'ix> {
     pub fast_market_order: &'ix Pubkey,
     /// The account that will receive rent from the fast market order account.
     /// This account is the only authority that can close the fast market order.
-    /// TODO: Rename to "refund_recipient".
+    // TODO: Rename to "refund_recipient".
     pub close_account_refund_recipient: &'ix Pubkey,
 }
 

solana/programs/matching-engine/src/state/fast_market_order.rs

@@ -127,7 +127,7 @@ impl FastMarketOrder {
 
     /// A double hash of the serialised fast market order. Used for seeds and
     /// verification.
-    /// TODO: Change return type to keccak::Hash
+    // TODO: Change return type to keccak::Hash
     pub fn digest(&self) -> [u8; 32] {
         wormhole_svm_definitions::compute_keccak_digest(
             keccak::hashv(&[