Panic in prettifyHTTP

[kiryam]

Hi, I have panic in method prettifyHTTP.

xxx ~> ssh -t xxxx sudo ./gor --input-raw :9200 --http-disallow-url /_bulk -http-allow-method GET -http-allow-method POST -http-allow-method HEAD  -prettify-http -output-tcp 1.1.1.1:9210 --exit-after 30s
Version: 0.16.0
2017/06/22 13:21:36 Running gor for a duration of 30s
2017/06/22 13:21:36 Connected to aggregator instance after  1  retries
2017/06/22 13:21:36 Connected to aggregator instance after  1  retries
2017/06/22 13:21:36 Connected to aggregator instance after  1  retries
2017/06/22 13:21:36 Connected to aggregator instance after  1  retries
2017/06/22 13:21:36 Connected to aggregator instance after  1  retries
2017/06/22 13:21:36 Connected to aggregator instance after  1  retries
2017/06/22 13:21:36 Connected to aggregator instance after  1  retries
2017/06/22 13:21:36 Connected to aggregator instance after  1  retries
2017/06/22 13:21:36 Connected to aggregator instance after  1  retries
2017/06/22 13:21:36 Connected to aggregator instance after  1  retries
panic: runtime error: invalid memory address or nil pointer dereference [recovered]
	panic: runtime error: invalid memory address or nil pointer dereference
[signal 0xb code=0x1 addr=0x290 pc=0x65ea13]

goroutine 78 [running]:
panic(0xa56e00, 0xc8200100d0)
	/usr/local/go/src/runtime/panic.go:481 +0x3e6
io/ioutil.readAll.func1(0xc8212915c0)
	/usr/local/go/src/io/ioutil/ioutil.go:30 +0x11e
panic(0xa56e00, 0xc8200100d0)
	/usr/local/go/src/runtime/panic.go:443 +0x4e9
compress/gzip.(*Reader).Read(0x0, 0xc821cf8400, 0x200, 0x200, 0x200, 0x0, 0x0)
	/usr/local/go/src/compress/gzip/gunzip.go:262 +0x43
bytes.(*Buffer).ReadFrom(0xc821291518, 0x7f40d803d1f0, 0x0, 0x0, 0x0, 0x0)
	/usr/local/go/src/bytes/buffer.go:176 +0x23f
io/ioutil.readAll(0x7f40d803d1f0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0)
	/usr/local/go/src/io/ioutil/ioutil.go:33 +0x156
io/ioutil.ReadAll(0x7f40d803d1f0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0)
	/usr/local/go/src/io/ioutil/ioutil.go:42 +0x51
main.prettifyHTTP(0xc821350000, 0x105, 0x500000, 0x0, 0x0, 0x0)
	/go/src/github.com/buger/gor/http_prettifier.go:57 +0xb2b
main.CopyMulty(0x7f40e036c390, 0xc820082480, 0xc8212ea450, 0x1, 0x1, 0x0, 0x0)
	/go/src/github.com/buger/gor/emitter.go:104 +0xc53
created by main.Start
	/go/src/github.com/buger/gor/emitter.go:28 +0x4b2