Minor style changes

hashmap.go

@@ -31,7 +31,7 @@ type rbTree struct {
 	hashFunc func(interface{}) int64
 }
 
-// Create new hash map with supplied hashing function
+// New creates a new hash map with supplied hashing function
 func New(hashFunc func(i interface{}) int64) *rbTree {
 	return &rbTree{hashFunc: hashFunc}
 }

hashmap_test.go

@@ -105,7 +105,7 @@ func generateInputPool(size int) map[int64]int64 {
 func getShuffledKeys(input map[int64]int64) []int64 {
 	keys := []int64{}
 
-	for key, _ := range input {
+	for key := range input {
 		keys = append(keys, key)
 	}