output eliminate redundant post calculation
output eliminate redundant post calculation

Signed-off-by: Andy Green <b471f5a494de34531c9e5a6e15abda71edd49104@linaro.org>

dumganhar/libwebsockets,sartura/libwebsockets,dumganhar/libwebsockets,ralight/libwebsockets,ralight/libwebsockets,dumganhar/libwebsockets,sartura/libwebsockets,dumganhar/libwebsockets,sartura/libwebsockets,ralight/libwebsockets,ralight/libwebsockets,sartura/libwebsockets,sartura/libwebsockets,sartura/libwebsockets,dumganhar/libwebsockets,ralight/libwebsockets,sartura/libwebsockets