Ruby » Ruby master

merge rivision(s) 33685:

• win32/win32.c (unixtime_to_filetime): should check the return value
  of localtime(). reported by snowjail at gmail.com.
  [ruby-dev:44838] [Bug #5596]

[Backport #5596]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_3@34438 b2dd03c8-39d4-4d8f-98ff-823fe69b080e