Make the connection error message nicer :)

[lydell]

If you try to run npm-home while offline, this happens:

❯ nh --version
1.5.0

❯ nh -g npm-home
RequestError
    at ClientRequest.req.once.err (/home/lydell/.npm-global/lib/node_modules/npm-home/node_modules/got/index.js:73:21)
    at Object.onceWrapper (events.js:316:30)
    at emitOne (events.js:115:13)
    at ClientRequest.emit (events.js:210:7)
    at TLSSocket.socketErrorListener (_http_client.js:401:9)
    at emitOne (events.js:115:13)
    at TLSSocket.emit (events.js:210:7)
    at emitErrorNT (internal/streams/destroy.js:64:8)
    at _combinedTickCallback (internal/process/next_tick.js:138:11)
    at process._tickCallback (internal/process/next_tick.js:180:9)

I run into this every once in a while on the train where the Internet connection is spotty.