Fix crash when habits with reminders have short names

Fixes #109

app/src/main/java/org/isoron/uhabits/helpers/ReminderHelper.java

@@ -93,9 +93,9 @@ public class ReminderHelper
         else
             manager.set(AlarmManager.RTC_WAKEUP, reminderTime, pendingIntent);
 
-        Log.d("ReminderHelper", String.format("Setting alarm (%s): %s...",
+        String name = habit.name.substring(0, Math.min(3, habit.name.length()));
-                DateFormat.getDateTimeInstance().format(new Date(reminderTime)),
+        Log.d("ReminderHelper", String.format("Setting alarm (%s): %s",
-                habit.name.substring(0, 3)));
+                DateFormat.getDateTimeInstance().format(new Date(reminderTime)), name));
     }
 
     @Nullable