feat: wait for any wlan interface to be up before getting default gw #18
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On my raspberry pi, I have disabled the built-in wifi and use a usb wifi adapter for better wifi signal. This results
/sys/class/net/wlan0/operstatealways being down. The workaround is to not useautoas the target and specify my gateway manually. In my case/sys/class/net/wlan1/operstateis the one that will beupwhen I am connected. This pull request will look for anywlan*interface to beup. Then it can proceed to get the default gateway fromip route(which still works as-is since there is nothing interface specific there).