Cannot append to end of file with CLI

[alanshaw]

Seems to be the case for daemon on and daemon off:

js-ipfs:

$ echo "hello" | ipfs files write /test
$ ipfs files read /test
hello
$ echo "hello" | ipfs files write /test --offset=6
$ ipfs files read /test
hello

go-ipfs:

$ echo "hello" | ipfs files write /test
$ ipfs files read /test
hello
$ echo "hello" | ipfs files write /test --offset=6
$ ipfs files read /test
hello
hello