"Panic issue index out of range"

[ssenthil416]

Enable http Ingest and try to curl to /Ingest with jacon input of metric and tagset

2016/11/04 14:14:00 http: panic serving: runtime error: index out of range
goroutine 109 [running]:
net/http.(*conn).serve.func1(0xc4225f8400)
/usr/local/go1.7.1/src/net/http/server.go:1491 +0x12a
panic(0x858c80, 0xc4200100d0)
/usr/local/go1.7.1/src/runtime/panic.go:458 +0x243
github.com/square/metrics/main/web/server.ingestHandler.ServeHTTP(0x7f4ec0011158, 0xc4225071a0, 0xad8120, 0xc422610000, 0xc42260c000)
/home/desk/work/src/github.com/square/metrics/main/web/server/ingest.go:54 +0x8ee
github.com/square/metrics/main/web/server.(*ingestHandler).ServeHTTP(0xc422582fe0, 0xad8120, 0xc422610000, 0xc42260c000)
:3 +0x79
net/http.(*ServeMux).ServeHTTP(0xc42253d380, 0xad8120, 0xc422610000, 0xc42260c000)
/usr/local/go1.7.1/src/net/http/server.go:2022 +0x7f
net/http.serverHandler.ServeHTTP(0xc422556f00, 0xad8120, 0xc422610000, 0xc42260c000)
/usr/local/go1.7.1/src/net/http/server.go:2202 +0x7d
net/http.(*conn).serve(0xc4225f8400, 0xad8ae0, 0xc422600200)
/usr/local/go1.7.1/src/net/http/server.go:1579 +0x4b7
created by net/http.(*Server).Serve
/usr/local/go1.7.1/src/net/http/server.go:2293 +0x44d