Omit some external parameter name

Base32/Base16.swift

@@ -29,7 +29,7 @@ import Foundation
 // MARK: - Base16 NSData <-> String
 
 public func base16Encode(data: NSData, uppercase: Bool = true) -> String {
-    return base16encode(data.bytes, data.length, uppercase: uppercase)
+    return base16encode(data.bytes, data.length, uppercase)
 }
 
 public func base16DecodeToData(string: String) -> NSData? {
@@ -43,7 +43,7 @@ public func base16DecodeToData(string: String) -> NSData? {
 // MARK: - Base16 [UInt8] <-> String
 
 public func base16Encode(array: [UInt8], uppercase: Bool = true) -> String {
-    return base16encode(array, array.count, uppercase: uppercase)
+    return base16encode(array, array.count, uppercase)
 }
 
 public func base16Decode(string: String) -> [UInt8]? {
@@ -93,7 +93,7 @@ extension NSData {
 }
 
 // MARK: encode
-private func base16encode(data: UnsafePointer<Void>, length: Int, uppercase: Bool = true) -> String {
+private func base16encode(data: UnsafePointer<Void>, length: Int, _ uppercase: Bool = true) -> String {
     let array = UnsafeBufferPointer<UInt8>(start: UnsafePointer<UInt8>(data), count: length)
     return map(array) { String(format: uppercase ? "%02X" : "%02x", $0) }.reduce("", combine: +)
 }