don't require shell_command

[ThiefMaster]

Right now this fails:

    panes:
      - focus: true

while this works:

    panes:
      - focus: true
        shell_command:

or this:

    panes:
      -

It would be nice if shell_command defaulted to empty even if other keys were present for the pane.

[tony]

@ThiefMaster: thanks for the report!

So http://tmuxp.readthedocs.org/en/latest/examples.html#blank-panes do not work focus: true?

If I did

ession_name: Blank pane test
windows:
  # Emptiness will simply open a blank pane, if no shell_command_before.
  # All these are equivalent
  - window_name: Blank pane test
    panes:
    -
    - pane
    - blank
      focus: true

that wouldn't work?

[ThiefMaster]

    - blank
      focus: true

That's invalid YAML - a plain - blank works because that way you get a string value. But with the focus: true below you get an object so blank is a syntax error because there's no : value afterwards.