tfswitch list is very intrusive... Shouldn't trigger download of latest

[marcellodesales]

tfswitch triggers download

• I just wanted to list all the versions currently installed without any downloads
• The switch verified that there's a new version and automatically downloaded without me asking

$ tfswitch -l
Reading required version from terraform file, constraint: >= 0.12
Matched version: 0.13.5
Downloading https://releases.hashicorp.com/terraform/0.13.5/terraform_0.13.5_darwin_amd64.zip to terraform_0.13.5_darwin_amd64.zip
Downloading ...
^C
terraform_ps1:4: command not found: terraform

Feature Request

• WIthout knowing the versions can break, I think this could avoid switching to new versions until asked

$ tfswitch -l 

• Maybe use a fetch

$tfswitch --fetch

• I know I can change restrictions on my terraform file, but I think that's a bit intrusive to just switch automatically

[warrensbox]

This is a bug. I will look at this.