修复ngx_http_write_filter_module.c中的错误解释#12

TKONIY wants to merge 1 commit intoy123456yz:mastery123456yz/reading-code-of-nginx-1.9.2:masterfrom

TKONIY:masterTKONIY/reading-code-of-nginx-1.9.2:masterCopy head branch name to clipboard