[swiftlint] Fix violation: Colons should be next to the identifier

warning: Colon Violation: Colons should be next to the identifier when specifying a type and next to the key in dictionary literals.

Author: jawwad

Bucket Sort/BucketSort.swift

@@ -23,7 +23,7 @@
 import Foundation
 // FIXME: comparison operators with optionals were removed from the Swift Standard Libary.
 // Consider refactoring the code to use the non-optional operators.
-fileprivate func < <T : Comparable>(lhs: T?, rhs: T?) -> Bool {
+fileprivate func < <T: Comparable>(lhs: T?, rhs: T?) -> Bool {
   switch (lhs, rhs) {
   case let (l?, r?):
     return l < r
@@ -36,7 +36,7 @@ fileprivate func < <T : Comparable>(lhs: T?, rhs: T?) -> Bool {
 
 // FIXME: comparison operators with optionals were removed from the Swift Standard Libary.
 // Consider refactoring the code to use the non-optional operators.
-fileprivate func >= <T : Comparable>(lhs: T?, rhs: T?) -> Bool {
+fileprivate func >= <T: Comparable>(lhs: T?, rhs: T?) -> Bool {
   switch (lhs, rhs) {
   case let (l?, r?):
     return l >= r

Skip-List/SkipList.swift

@@ -71,10 +71,10 @@ private func coinFlip() -> Bool {
 public class DataNode<Key: Comparable, Payload> {
   public typealias Node = DataNode<Key, Payload>
 
-  var data            : Payload?  
-  fileprivate var key : Key?
-  var next            : Node?
-  var down            : Node?
+  var data: Payload?  
+  fileprivate var key: Key?
+  var next: Node?
+  var down: Node?
 
   public init(key: Key, data: Payload) {
     self.key  = key
@@ -102,8 +102,8 @@ open class SkipList<Key: Comparable, Payload> {
 extension SkipList {
 
   func findNode(key: Key) -> Node? {
-    var currentNode : Node? = head
-    var isFound     : Bool  = false
+    var currentNode: Node? = head
+    var isFound: Bool = false
 
     while !isFound {
       if let node = currentNode {