Chore: Minimal gramatical errors (signleton -> singleton) (ethereum#2…

…5057)

core: fix typos

core/blockchain_test.go

@@ -503,7 +503,7 @@ func TestReorgShortBlocks(t *testing.T)  { testReorgShort(t, true) }
 func testReorgShort(t *testing.T, full bool) {
 	// Create a long easy chain vs. a short heavy one. Due to difficulty adjustment
 	// we need a fairly long chain of blocks with different difficulties for a short
-	// one to become heavyer than a long one. The 96 is an empirical value.
+	// one to become heavier than a long one. The 96 is an empirical value.
 	easy := make([]int64, 96)
 	for i := 0; i < len(easy); i++ {
 		easy[i] = 60

core/bloombits/matcher_test.go

@@ -124,13 +124,13 @@ func makeRandomIndexes(lengths []int, max int) [][]bloomIndexes {
 
 // testMatcherDiffBatches runs the given matches test in single-delivery and also
 // in batches delivery mode, verifying that all kinds of deliveries are handled
-// correctly withn.
+// correctly within.
 func testMatcherDiffBatches(t *testing.T, filter [][]bloomIndexes, start, blocks uint64, intermittent bool, retrievals uint32) {
 	singleton := testMatcher(t, filter, start, blocks, intermittent, retrievals, 1)
 	batched := testMatcher(t, filter, start, blocks, intermittent, retrievals, 16)
 
 	if singleton != batched {
-		t.Errorf("filter = %v blocks = %v intermittent = %v: request count mismatch, %v in signleton vs. %v in batched mode", filter, blocks, intermittent, singleton, batched)
+		t.Errorf("filter = %v blocks = %v intermittent = %v: request count mismatch, %v in singleton vs. %v in batched mode", filter, blocks, intermittent, singleton, batched)
 	}
 }
 

core/state/pruner/bloom.go

@@ -39,7 +39,7 @@ func (f stateBloomHasher) BlockSize() int                    { panic("not implem
 func (f stateBloomHasher) Size() int                         { return 8 }
 func (f stateBloomHasher) Sum64() uint64                     { return binary.BigEndian.Uint64(f) }
 
-// stateBloom is a bloom filter used during the state convesion(snapshot->state).
+// stateBloom is a bloom filter used during the state conversion(snapshot->state).
 // The keys of all generated entries will be recorded here so that in the pruning
 // stage the entries belong to the specific version can be avoided for deletion.
 //
@@ -100,7 +100,7 @@ func (bloom *stateBloom) Commit(filename, tempname string) error {
 	}
 	f.Close()
 
-	// Move the teporary file into it's final location
+	// Move the temporary file into it's final location
 	return os.Rename(tempname, filename)
 }