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bc2d400b4c
Following command was failing because the parser incorrectly picks up the second "watch" string in exec command, thus passing wrong exec commands. ``` ETCDCTL_API=3 ./bin/etcdctl watch aaa -- echo watch event received panic: runtime error: slice bounds out of range goroutine 1 [running]: github.com/coreos/etcd/etcdctl/ctlv3/command.parseWatchArgs(0xc42002e080, 0x8, 0x8, 0xc420206a20, 0x5, 0x6, 0x0, 0x0, 0x0, 0x0, ...) /home/gyuho/go/src/github.com/coreos/etcd/etcdctl/ctlv3/command/watch_command.go:303 +0xbed github.com/coreos/etcd/etcdctl/ctlv3/command.watchCommandFunc(0xc4202a7180, 0xc420206a20, 0x5, 0x6) /home/gyuho/go/src/github.com/coreos/etcd/etcdctl/ctlv3/command/watch_command.go:73 +0x11d github.com/coreos/etcd/vendor/github.com/spf13/cobra.(*Command).execute(0xc4202a7180, 0xc420206960, 0x6, 0x6, 0xc4202a7180, 0xc420206960) /home/gyuho/go/src/github.com/coreos/etcd/vendor/github.com/spf13/cobra/command.go:766 +0x2c1 github.com/coreos/etcd/vendor/github.com/spf13/cobra.(*Command).ExecuteC(0x1363de0, 0xc420128638, 0xc420185e01, 0xc420185ee8) /home/gyuho/go/src/github.com/coreos/etcd/vendor/github.com/spf13/cobra/command.go:852 +0x30a github.com/coreos/etcd/vendor/github.com/spf13/cobra.(*Command).Execute(0x1363de0, 0x0, 0x0) /home/gyuho/go/src/github.com/coreos/etcd/vendor/github.com/spf13/cobra/command.go:800 +0x2b github.com/coreos/etcd/etcdctl/ctlv3.Start() /home/gyuho/go/src/github.com/coreos/etcd/etcdctl/ctlv3/ctl_nocov.go:25 +0x8e main.main() /home/gyuho/go/src/github.com/coreos/etcd/etcdctl/main.go:40 +0x17b ``` Signed-off-by: Gyuho Lee <gyuhox@gmail.com>