Removed trailing newline from multiple verses

exercises/twelve-days/src/example/java/TwelveDays.java

     }
 
     public static String verses(int verseNumberStart, int verseNumberEnd) {
-        StringBuilder stringBuilder = new StringBuilder();
-        for (int i = verseNumberStart; i <= verseNumberEnd; i++) {
+        StringBuilder stringBuilder = new StringBuilder(constructVerse(verseNumberStart));
+        for (int i = verseNumberStart + 1; i <= verseNumberEnd; i++) {
+            stringBuilder.append("\n");
             stringBuilder.append(constructVerse(i));
-            if (i != 12) {
-                stringBuilder.append("\n");
-            }
         }
         return stringBuilder.toString();
     }

exercises/twelve-days/src/test/java/TwelveDaysTest.java

                 "On the second day of Christmas my true love gave to me, two Turtle Doves, " +
                 "and a Partridge in a Pear Tree.\n\n" +
                 "On the third day of Christmas my true love gave to me, three French Hens, two Turtle Doves, " +
-                "and a Partridge in a Pear Tree.\n\n";
+                "and a Partridge in a Pear Tree.\n";
         assertEquals(expectedVerseOneToThree, TwelveDays.verses(1, 3));
     }