DeviceGuru hardwareString crash

[fengCaifan]

In our project, some online jailbreak users crashed at this location. It seems that there is a problem with the obtained hw_machine. I hope to fix this case later.

Crashed: com.apple.main-thread 0 DeviceGuru 0x9f64 specialized String.init(cString:) + 64 (<compiler-generated>:64) 1 DeviceGuru 0xa0a0 specialized DeviceGuru.hardwareString() + 63 (DeviceGuru.swift:63) 2 EventLog 0x4afc defaultParams() + 100 (EventCodeProtocol.swift:100) 3 GRAVITY 0x5aa59c specialized xxxService.pageDidShow(context:pluginCoordinator:) + 22 (xxxService.swift:22) 4 GRAVITY 0x5a9d54 protocol witness for xxxx1Service.pageDidShow(context:pluginCoordinator:) in conformance xxxx1Service + 4336196948 (<compiler-generated>:4336196948)