Interface name parsing fails for names with spaces

[angrycub]

Because the regex in

go-sockaddr/ifaddrs.go

Line 19 in 9b4c5fa

ifNameRE *regexp.Regexp = regexp.MustCompile(`^Ethernet adapter ([^\s:]+):`)

breaks the capture group on spaces any interface name (Ethernet 2, for example) will fail to be extracted from the ipconfig output.