emate/packer-ebsnoami: builder/amazon/common/step_modify_ami_attributes.go; 18 LoC

Found a possible issue in [emate/packer-ebsnoami](https://www.github.com/emate/packer-ebsnoami) at [builder/amazon/common/step_modify_ami_attributes.go](https://github.com/emate/packer-ebsnoami/blob/69ddbe981f8e020a1e995b2caba54a1aa7f8bb23/builder/amazon/common/step_modify_ami_attributes.go#L75-L92)

Below is the message reported by the analyzer for this snippet of code. Beware that the analyzer only reports the first
issue it finds, so please do not limit your consideration to the contents of the below message.

> reference to ami is reassigned at line 83

[Click here to see the code in its original context.](https://github.com/emate/packer-ebsnoami/blob/69ddbe981f8e020a1e995b2caba54a1aa7f8bb23/builder/amazon/common/step_modify_ami_attributes.go#L75-L92)

Click here to show the 18 line(s) of Go which triggered the analyzer.

```go
for region, ami := range amis {
ui.Say(fmt.Sprintf("Modifying attributes on AMI (%s)...", ami))
regionconn := ec2.New(&aws.Config{
Credentials: ec2conn.Config.Credentials,
Region: region,
})
for name, input := range options {
ui.Message(fmt.Sprintf("Modifying: %s", name))
input.ImageID = &ami
_, err := regionconn.ModifyImageAttribute(input)
if err != nil {
err := fmt.Errorf("Error modify AMI attributes: %s", err)
state.Put("error", err)
ui.Error(err.Error())
return multistep.ActionHalt
}
}
}

```

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See the descriptions of the classifications [here](https://github.com/github-vet/rangeclosure-findings#how-can-i-help) for more information.

commit ID: 69ddbe981f8e020a1e995b2caba54a1aa7f8bb23