all: fix spelling mistakes (#25961)

eth/fetcher/tx_fetcher.go

@@ -154,7 +154,7 @@ type TxFetcher struct {
 	// broadcast without needing explicit request/reply round trips.
 	waitlist  map[common.Hash]map[string]struct{} // Transactions waiting for an potential broadcast
 	waittime  map[common.Hash]mclock.AbsTime      // Timestamps when transactions were added to the waitlist
-	waitslots map[string]map[common.Hash]struct{} // Waiting announcement sgroupped by peer (DoS protection)
+	waitslots map[string]map[common.Hash]struct{} // Waiting announcements grouped by peer (DoS protection)
 
 	// Stage 2: Queue of transactions that waiting to be allocated to some peer
 	// to be retrieved directly.
@@ -218,7 +218,7 @@ func (f *TxFetcher) Notify(peer string, hashes []common.Hash) error {
 	txAnnounceInMeter.Mark(int64(len(hashes)))
 
 	// Skip any transaction announcements that we already know of, or that we've
-	// previously marked as cheap and discarded. This check is of course racey,
+	// previously marked as cheap and discarded. This check is of course racy,
 	// because multiple concurrent notifies will still manage to pass it, but it's
 	// still valuable to check here because it runs concurrent  to the internal
 	// loop, so anything caught here is time saved internally.