(test_conversion_time2date_with_msec): test by using only
assert_in_delta  to avoid to fail when converting Time object with
999999999 nanoseconds into VT_DATE Variant.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47686 b2dd03c8-39d4-4d8f-98ff-823fe69b080e