tox failing to ignore return code

[osfrickler]

Issue

Sample tox.ini:

[testenv]
allowlist_externals = false
commands =
  -false

Expected result from tox (works with tox3): pass

Result with 4.0.0rc1:

$ ~/vv/bin/tox 
py: commands[0]> -false
py: exit 2 (0.00 seconds) /home/jharbott/tmp> -false
  py: FAIL code 2 (0.06=setup[0.06]+cmd[0.00] seconds)
  evaluation failed :( (0.15 seconds)

Environment

Provide at least:

• OS: Ubuntu 22.04

[osfrickler]

Cool, I didn't even know there is a - variant. (TBH I only learned about this whole feature when I tested tox4 on some OpenStack projects.)

Thinking about it, I wouldn't mind if you'd deprecate the -cmd variant, it is pretty confusing anyway in the end, I was first looking for a command named -cmd until I found the docs for this.

[gaborbernat]

Yeah, the thing is I don't want this to be a breaking change, hence why in the end decided to accept -cmd too...