==================
env command
==================

foo:
  ENV foo=bar

---

    (source_file
      (target
        name: (identifier)
        (block
          (env_command
            key: (variable)
            value: (string
              (unquoted_string))))))


==================
env command with spaces around =
==================

foo:
  ENV foo = bar

---

    (source_file
      (target
        name: (identifier)
        (block
          (env_command
            key: (variable)
            value: (string
              (unquoted_string))))))


==================
env command without =
==================

foo:
  ENV foo bar

---

    (source_file
      (target
        name: (identifier)
        (block
          (env_command
            key: (variable)
            value: (string
              (unquoted_string))))))

