GitLab

See: https://github.com/arduino/arduino-cli/pull/67#issuecomment-429919298

quote:
There are some options without label (did not parsed well) for upload speed on different OS:

Option:     Upload Speed                             UploadSpeed
            115200                                 ✔ UploadSpeed=115200
            9600                                     UploadSpeed=9600
            57600                                    UploadSpeed=57600
            230400                                   UploadSpeed=230400
                                                     UploadSpeed=256000
            460800                                   UploadSpeed=460800
                                                     UploadSpeed=512000
            921600                                   UploadSpeed=921600

Cause boards.txt contains:

generic.menu.UploadSpeed.115200=115200
generic.menu.UploadSpeed.115200.upload.speed=115200
generic.menu.UploadSpeed.9600=9600
generic.menu.UploadSpeed.9600.upload.speed=9600
generic.menu.UploadSpeed.57600=57600
generic.menu.UploadSpeed.57600.upload.speed=57600
generic.menu.UploadSpeed.230400.linux=230400
generic.menu.UploadSpeed.230400.macosx=230400
generic.menu.UploadSpeed.230400.upload.speed=230400
generic.menu.UploadSpeed.256000.windows=256000
generic.menu.UploadSpeed.256000.upload.speed=256000
generic.menu.UploadSpeed.460800.linux=460800
generic.menu.UploadSpeed.460800.macosx=460800
generic.menu.UploadSpeed.460800.upload.speed=460800
generic.menu.UploadSpeed.512000.windows=512000
generic.menu.UploadSpeed.512000.upload.speed=512000
generic.menu.UploadSpeed.921600=921600
generic.menu.UploadSpeed.921600.upload.speed=921600