style: gofumpt linting (#15605)

store/cachekv/bench_helper_test.go

@@ -34,7 +34,7 @@ func generateSequentialKeys(startKey []byte, numKeys int) [][]byte {
 }
 
 // Generate many random, unsorted keys
-func generateRandomKeys(keySize int, numKeys int) [][]byte {
+func generateRandomKeys(keySize, numKeys int) [][]byte {
 	toReturn := make([][]byte, 0, numKeys)
 	for i := 0; i < numKeys; i++ {
 		newKey := randSlice(keySize)

store/cachekv/internal/memiterator.go

@@ -60,7 +60,7 @@ func newMemIterator(start, end []byte, items BTree, ascending bool) *memIterator
 	return mi
 }
 
-func (mi *memIterator) Domain() (start []byte, end []byte) {
+func (mi *memIterator) Domain() (start, end []byte) {
 	return mi.start, mi.end
 }
 

store/cachekv/store.go

@@ -68,7 +68,7 @@ func (store *Store) Get(key []byte) (value []byte) {
 }
 
 // Set implements types.KVStore.
-func (store *Store) Set(key []byte, value []byte) {
+func (store *Store) Set(key, value []byte) {
 	types.AssertValidKey(key)
 	types.AssertValidValue(value)