bugfix: ngx_uwsgi and ngx_scgi did set u->length but not u->pipe->length, thus leading to truncation false positives.
bugfix: ngx_uwsgi and ngx_scgi did set u->length but not u->pipe->length, thus leading to truncation false positives.

tedlz123/Openresty,tedlz123/Openresty,tedlz123/Openresty,tedlz123/Openresty