Update the comments and logs

signer/src/block_observer.rs

@@ -159,7 +159,7 @@ where
                         tracing::warn!(%error, "could not process stacks blocks");
                     }
 
-                    tracing::debug!("Updating the signer state");
+                    tracing::debug!("updating the signer state");
                     if let Err(error) = self.update_signer_state(block_hash).await {
                         tracing::warn!(%error, "could not update the signer state");
                         continue;
@@ -625,7 +625,7 @@ impl<C: Context, B> BlockObserver<C, B> {
         tracing::info!("loading sbtc limits from Emily");
         self.update_sbtc_limits().await?;
 
-        tracing::info!("Updating the signer state with the current signer set");
+        tracing::info!("updating the signer state with the current signer set");
         self.set_signer_set_and_aggregate_key(chain_tip).await
     }
 }

signer/tests/integration/block_observer.rs

@@ -852,12 +852,11 @@ async fn next_headers_to_process_ignores_known_headers() {
     testing::storage::drop_db(db).await;
 }
 
-/// The [`TxCoordinatorEventLoop::get_signer_set_and_aggregate_key`]
-/// function is supposed to fetch the "current" signing set and the
-/// aggregate key to use for bitcoin transactions. It attempts to get the
-/// latest rotate-keys contract call transaction confirmed on the canonical
-/// Stacks blockchain and falls back to the DKG shares table if no such
-/// transaction can be found.
+/// The [`get_signer_set_and_aggregate_key`] function is supposed to fetch
+/// the "current" signing set and the aggregate key to use for bitcoin
+/// transactions. It attempts to get the latest rotate-keys contract call
+/// transaction confirmed on the canonical Stacks blockchain and falls back
+/// to the DKG shares table if no such transaction can be found.
 ///
 /// This tests that we prefer rotate keys transactions if it's available
 /// but will use the DKG shares behavior is indeed the case.