Support for multi-line commands

[vazirim]

Is your feature request related to a problem? Please describe.
Multi-line commands don't work as expected with the command block.

Describe the solution you'd like
Address any issues arising for the support of multi line commands.

Describe alternatives you've considered
N/A

Additional context

This issue was proposed by @eloycoto.

[esnible]

Example?

When I started using PDL I was confused about the difference between multi-line YAML strings beginning with | and those beginning with >. Does this issue relate to that?

[eloycoto]

  - lang: command
    code: |
        ls -lah
              jq -r '
                  .[] |
                  select(
                      .person.name == "eloy"
                  ) | ([
                  "Name: "+.person.name,
                  "Email:" +.person.email
                  ]| join("\n"))
                ' people.json