constexpr more stuff and clean up whitespace

test/date_test/durations.pass.cpp

@@ -1,17 +1,17 @@
 // The MIT License (MIT)
-// 
+//
 // Copyright (c) 2015 Howard Hinnant
-// 
+//
 // Permission is hereby granted, free of charge, to any person obtaining a copy
 // of this software and associated documentation files (the "Software"), to deal
 // in the Software without restriction, including without limitation the rights
 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 // copies of the Software, and to permit persons to whom the Software is
 // furnished to do so, subject to the following conditions:
-// 
+//
 // The above copyright notice and this permission notice shall be included in all
 // copies or substantial portions of the Software.
-// 
+//
 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
@@ -21,21 +21,21 @@
 // SOFTWARE.
 
 // durations
-// 
+//
 // using days = std::chrono::duration
 //     <int, std::ratio_multiply<std::ratio<24>, std::chrono::hours::period>>;
-// 
+//
 // using weeks = std::chrono::duration
 //     <int, std::ratio_multiply<std::ratio<7>, days::period>>;
-// 
+//
 // using years = std::chrono::duration
 //     <int, std::ratio_multiply<std::ratio<146097, 400>, days::period>>;
-// 
+//
 // using months = std::chrono::duration
 //     <int, std::ratio_divide<years::period, std::ratio<12>>>;
-// 
+//
 // time_point
-// 
+//
 // using sys_days = std::chrono::time_point<std::chrono::system_clock, days>;
 
 #include "date.h"