ClockAddTest : add hint to @Ignore annotations

#445

exercises/clock/src/test/java/ClockAddTest.java

 
 public class ClockAddTest {
 
-    @Ignore
+    @Ignore("Remove to run test")
     @Test
     public void addMinutes() {
         Clock clock = new Clock(10, 0);
         assertEquals("10:03", clock.toString());
     }
 
-    @Ignore
+    @Ignore("Remove to run test")
     @Test
     public void addNoMinutes() {
         Clock clock = new Clock(6, 41);
         assertEquals("06:41", clock.toString());
     }
 
-    @Ignore
+    @Ignore("Remove to run test")
     @Test
     public void addToNextHour() {
         Clock clock = new Clock(0, 45);
         assertEquals("01:25", clock.toString());
     }
 
-    @Ignore
+    @Ignore("Remove to run test")
     @Test
     public void addMoreThanOneHour() {
         Clock clock = new Clock(10, 0);
         assertEquals("11:01", clock.toString());
     }
 
-    @Ignore
+    @Ignore("Remove to run test")
     @Test
     public void addMoreThanTwoHoursWithCarry() {
         Clock clock = new Clock(0, 45);
         assertEquals("03:25", clock.toString());
     }
 
-    @Ignore
+    @Ignore("Remove to run test")
     @Test
     public void addAcrossMidnight() {
         Clock clock = new Clock(23, 59);
         assertEquals("00:01", clock.toString());
     }
 
-    @Ignore
+    @Ignore("Remove to run test")
     @Test
     public void addMoreThanOneDay() {
         Clock clock = new Clock(5, 32);
         assertEquals("06:32", clock.toString());
     }
 
-    @Ignore
+    @Ignore("Remove to run test")
     @Test
     public void addMoreThanTwoDays() {
         Clock clock = new Clock(1, 1);
         assertEquals("11:21", clock.toString());
     }
 
-    @Ignore
+    @Ignore("Remove to run test")
     @Test
     public void subtractMinutes() {
         Clock clock = new Clock(10, 3);
         assertEquals("10:00", clock.toString());
     }
 
-    @Ignore
+    @Ignore("Remove to run test")
     @Test
     public void subtractToPreviousHour() {
         Clock clock = new Clock(10, 3);
         assertEquals("09:33", clock.toString());
     }
 
-    @Ignore
+    @Ignore("Remove to run test")
     @Test
     public void subtractMoreThanAnHour() {
         Clock clock = new Clock(10, 3);
         assertEquals("08:53", clock.toString());
     }
 
-    @Ignore
+    @Ignore("Remove to run test")
     @Test
     public void subtractAcrossMidnight() {
         Clock clock = new Clock(0, 3);
         assertEquals("23:59", clock.toString());
     }
 
-    @Ignore
+    @Ignore("Remove to run test")
     @Test
     public void subtractMoreThanTwoHours() {
         Clock clock = new Clock(0, 0);
         assertEquals("21:20", clock.toString());
     }
 
-    @Ignore
+    @Ignore("Remove to run test")
     @Test
     public void subtractMoreThanTwoHoursWithBorrow() {
         Clock clock = new Clock(6, 15);
         assertEquals("03:35", clock.toString());
     }
 
-    @Ignore
+    @Ignore("Remove to run test")
     @Test
     public void subtractMoreThanOneDay() {
         Clock clock = new Clock(5, 32);
         assertEquals("04:32", clock.toString());
     }
 
-    @Ignore
+    @Ignore("Remove to run test")
     @Test
     public void subtractMoreThanTwoDays() {
         Clock clock = new Clock(2, 20);