Support nanosec file timestamp on Windows 8 or later.
Original patches are written by kubo (Kubo Takehiro).
Windows 7 and earlier also supports nanosec file timestamp, but it's too
accurate than system time. so, this feature is disabled on such versions.
[Feature #13726]
support nanosec file timestamp on newer Windows
Support nanosec file timestamp on Windows 8 or later.
Original patches are written by kubo (Kubo Takehiro).
Windows 7 and earlier also supports nanosec file timestamp, but it's too
accurate than system time. so, this feature is disabled on such versions.
[Feature #13726]
this change also includes [Misc #13702]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61013 b2dd03c8-39d4-4d8f-98ff-823fe69b080e