bftpd: 4.4 -> 4.8
bftpd: 4.4 -> 4.8

Semi-automatic update. These checks were done:

- built on NixOS
- ran `/nix/store/jl7d3l14s4p2f7r9mm9pij1ifpszkziv-bftpd-4.8/bin/bftpd -h` got 0 exit code
- ran `/nix/store/jl7d3l14s4p2f7r9mm9pij1ifpszkziv-bftpd-4.8/bin/bftpd --help` got 0 exit code
- ran `/nix/store/jl7d3l14s4p2f7r9mm9pij1ifpszkziv-bftpd-4.8/bin/bftpd -v` and found version 4.8
- ran `/nix/store/jl7d3l14s4p2f7r9mm9pij1ifpszkziv-bftpd-4.8/bin/bftpd --version` and found version 4.8
- ran `/nix/store/jl7d3l14s4p2f7r9mm9pij1ifpszkziv-bftpd-4.8/bin/bftpd -h` and found version 4.8
- ran `/nix/store/jl7d3l14s4p2f7r9mm9pij1ifpszkziv-bftpd-4.8/bin/bftpd --help` and found version 4.8
- found 4.8 with grep in /nix/store/jl7d3l14s4p2f7r9mm9pij1ifpszkziv-bftpd-4.8
- found 4.8 in filename of file in /nix/store/jl7d3l14s4p2f7r9mm9pij1ifpszkziv-bftpd-4.8

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