Variables starting with `e' in iokit/Families/IONetworking

• enabled iokit/Families/IONetworking/IONetworkData.cpp:358
• entry iokit/Families/IONetworking/IONetworkUserClient.cpp:172
• equal iokit/Families/IONetworking/IONetworkMedium.cpp:393
• ethernetOptionDescriptions iokit/Families/IONetworking/IONetworkMedium.cpp:277