ext/win32ole/win32ole.c (d2time): fix the bug of VT_DATE to String conversion when negative value.
test/win32ole/test_win32ole_variant.rb: ditto.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@17878 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
ext/win32ole/win32ole.c (d2time): fix the bug of VT_DATE
to String conversion when negative value.
test/win32ole/test_win32ole_variant.rb: ditto.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@17878 b2dd03c8-39d4-4d8f-98ff-823fe69b080e