Update isogram to latest canoncial json. Refs exercism#488

exercises/isogram/src/test/scala/IsogramTest.scala

@@ -1,49 +1,54 @@
 import org.scalatest.{Matchers, FunSuite}
 
-/** @version 1.3.0 */
+/** @version 1.4.0 */
 class IsogramTest extends FunSuite with Matchers {
-  
+
   test("empty string") {
-    Isogram.isIsogram("") should be (true)
+    Isogram.isIsogram("") should be(true)
   }
 
   test("isogram with only lower case characters") {
     pending
-    Isogram.isIsogram("isogram") should be (true)
+    Isogram.isIsogram("isogram") should be(true)
   }
 
   test("word with one duplicated character") {
     pending
-    Isogram.isIsogram("eleven") should be (false)
+    Isogram.isIsogram("eleven") should be(false)
+  }
+
+  test("word with one duplicated character from the end of the alphabet") {
+    pending
+    Isogram.isIsogram("zzyzx") should be(false)
   }
 
   test("longest reported english isogram") {
     pending
-    Isogram.isIsogram("subdermatoglyphic") should be (true)
+    Isogram.isIsogram("subdermatoglyphic") should be(true)
   }
 
   test("word with duplicated character in mixed case") {
     pending
-    Isogram.isIsogram("Alphabet") should be (false)
+    Isogram.isIsogram("Alphabet") should be(false)
   }
 
   test("hypothetical isogrammic word with hyphen") {
     pending
-    Isogram.isIsogram("thumbscrew-japingly") should be (true)
+    Isogram.isIsogram("thumbscrew-japingly") should be(true)
   }
 
   test("isogram with duplicated hyphen") {
     pending
-    Isogram.isIsogram("six-year-old") should be (true)
+    Isogram.isIsogram("six-year-old") should be(true)
   }
 
   test("made-up name that is an isogram") {
     pending
-    Isogram.isIsogram("Emily Jung Schwartzkopf") should be (true)
+    Isogram.isIsogram("Emily Jung Schwartzkopf") should be(true)
   }
 
   test("duplicated character in the middle") {
     pending
-    Isogram.isIsogram("accentor") should be (false)
+    Isogram.isIsogram("accentor") should be(false)
   }
-}
+}