fix a bug in CTP login using UserProductInfo and AuthCode
fix a bug in CTP login using UserProductInfo and AuthCode

bigdig/vnpy,andrewchenshx/vnpy,vnpy/vnpy,andrewchenshx/vnpy,andrewchenshx/vnpy,bigdig/vnpy,msincenselee/vnpy,vnpy/vnpy,bigdig/vnpy,andrewchenshx/vnpy,msincenselee/vnpy,msincenselee/vnpy,andrewchenshx/vnpy,msincenselee/vnpy,bigdig/vnpy