add ld_preload mode fcntl linux flags convert to freebsd#866

jfb8856606 merged 2 commits intoF-Stack:devF-Stack/f-stack:devfrom

liujinhui-job:fix-ldpreload-fcntl-convertliujinhui-job/f-stack-0220:fix-ldpreload-fcntl-convertCopy head branch name to clipboard