   /// Create an instance with numeric value `v`.
   ///
   /// Requires: `v` is a valid Unicode scalar value.
-  public init(_ v : UInt16) {
+  public init(_ v: UInt16) {
     self = UnicodeScalar(UInt32(v))
   }
 
   /// Create an instance with numeric value `v`.
-  public init(_ v : UInt8) {
+  public init(_ v: UInt8) {
     self = UnicodeScalar(UInt32(v))
   }
 

  /// Construct with value `v.value`.
  ///
  /// Requires: `v.value` can be represented as UInt32.
  public init(_ v : UnicodeScalar) {
    self = v.value
  }
}

  /// Construct with value `v.value`.
  ///
  /// Requires: `v.value` can be represented as ASCII (0..<128).
  public init(ascii v: UnicodeScalar) {
    _precondition(v.value < 128,
        "Code point value does not fit into ASCII")
    self = UInt8(v.value)
