Fastly: fixed vcl create (#2385)

- fixed duplicate `--version` attribute
- fixed missing filename

First command will create the new service version `latest`
Following commands will operate on `latest` service version

Author: reithor

docs/infrastructure_and_maintenance/cache/http_cache/fastly.md

@@ -47,7 +47,7 @@ You also need to set up domains, HTTPS and origin configuration (not covered her
 All commands are explained in detail [below](#view-and-modify-vcl-configuration):
 
 ``` bash
-fastly vcl custom create --name=ez_main.vcl --version=active --autoclone --content=vendor/ibexa/fastly/fastly/ --version=latest --main
+fastly vcl custom create --name=ez_main.vcl --version=active --autoclone --content=vendor/ibexa/fastly/fastly/ez_main.vcl --main
 fastly vcl custom create --name=ez_user_hash.vcl --content=vendor/ibexa/fastly/fastly/ez_user_hash.vcl --version=latest
 fastly vcl snippet create --name="Re-Enable shielding on restart" --version=latest --priority 100 --type recv --content=vendor/ibexa/fastly/fastly/snippet_re_enable_shielding.vcl
 fastly service-version activate --version=latest