Reviewed by Z572 <zhengjunjie@iscas.ac.cn>.

Merged to the "master" branch as:
- 0d7115b867424240425e5eef20efcf6abf6b7e92
- da70c25a3b6e722a16e15e758373b08d1099ded1

- avp

-- 
Artyom "avp" Poptsov <poptsov.artyom@gmail.com>
Home page: https://memory-heap.org/~avp/
CADR Hackerspace co-founder: https://cadrspace.ru/
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