Remove the usage of 7z "-r" flag

[rapiz1]

From 7z manpages

-r[-|0]
Recurse subdirectories (CAUTION: this flag does not do what you think, avoid using it)

Do not use "-r" because this flag does not do what you think.

https://itectec.com/superuser/7z-what-does-the-r-flag-do/

This doesn't fit most people's expectation. And simply removing it will do.

[rapiz1]

A little explanation here:

$ tree
.
├── bar
│   └── foo
└── foo
$ 7z a -tzip expect.zip foo
$ 7z a -r -tzip actual.zip foo
$ 7z l expect.zip
7-Zip [64] 17.04 : Copyright (c) 1999-2021 Igor Pavlov : 2017-08-28
p7zip Version 17.04 (locale=zh_CN.UTF-8,Utf16=on,HugeFiles=on,64 bits,4 CPUs x64)

Scanning the drive for archives:
1 file, 140 bytes (1 KiB)

Listing archive: expect.zip

--
Path = expect.zip
Type = zip
Physical Size = 140

   Date      Time    Attr         Size   Compressed  Name
------------------- ----- ------------ ------------  ------------------------
2022-01-06 16:21:55 .....            0            0  foo
------------------- ----- ------------ ------------  ------------------------
2022-01-06 16:21:55                  0            0  1 files

$  7z l actual.zip
7-Zip [64] 17.04 : Copyright (c) 1999-2021 Igor Pavlov : 2017-08-28
p7zip Version 17.04 (locale=zh_CN.UTF-8,Utf16=on,HugeFiles=on,64 bits,4 CPUs x64)

Scanning the drive for archives:
1 file, 266 bytes (1 KiB)

Listing archive: actual.zip

--
Path = actual.zip
Type = zip
Physical Size = 266

   Date      Time    Attr         Size   Compressed  Name
------------------- ----- ------------ ------------  ------------------------
2022-01-06 16:21:58 .....            0            0  bar/foo
2022-01-06 16:21:55 .....            0            0  foo
------------------- ----- ------------ ------------  ------------------------
2022-01-06 16:21:58                  0            0  2 files