RT-Thread/rt-thread: https://github.com/RT-Thread/rt-thread.git @ 0b13409c16326f142597570b50bdea8e138da606

Bernard Xiong 8da9f78d72 [libc] remove rtlibc		%!s(int64=4) %!d(string=hai) anos
..
filesystems	14c29063e8 [devfs] _device_fs增加注释	%!s(int64=4) %!d(string=hai) anos
include	8da9f78d72 [libc] remove rtlibc	%!s(int64=4) %!d(string=hai) anos
src	8102502b98 [devfs] F_GETFL/F_SETFL should be handled by the drivers.	%!s(int64=4) %!d(string=hai) anos
Kconfig	8676fd966e [dfs] 将文件系统默认最大数量以及最大类型改为4	%!s(int64=4) %!d(string=hai) anos
SConscript	8a38307e2c [libc] Add RT_USING_POSIX macro.	%!s(int64=8) %!d(string=hai) anos