Lightning: How can I add funds to existing channel?

[jiyu3]

Issue and Steps to Reproduce

My friend fund channel to me with short satoshi. And now I want to send money via ln, but the amount which he funded on channel is so short(like 10 satoshi) that I can't send enough money I want (like 100 satoshi). Is it possible to add funds to existing(opening) channel? If possible, how can I do it?

lightning-cli fundchannel <my friend's node> 1037185 -> { "code" : -1, "message" : "Peer already CHANNELD_NORMAL" }

getinfo output

{
  "id": "02009947c197575f5a948e1e4343c41dc2e6122a9bd644629afb919f30e1115ff8", 
  "alias": "LOUDMAESTRO", 
  "color": "020099", 
  "address": [
  ], 
  "binding": [
    {
      "type": "ipv6", 
      "address": "::", 
      "port": 9735
    }, 
    {
      "type": "ipv4", 
      "address": "0.0.0.0", 
      "port": 9735
    }
  ], 
  "version": "v0.6.2-29-g62e6a9f", 
  "blockheight": 551272, 
  "network": "bitcoin", 
  "msatoshi_fees_collected": 1002
}

[cdecker]

This is called splice-in/-out and is currently being specified by the teams, implementation will start once the spec is finalized.