Since wendelin.core@e751b02c WCFS CLI 'status' command spawns a subprocess to avoid hanging if WCFS is deadlocked. To ensure the subprocess can find all python modules, we need to utilize the 'pyprog' section. Even if WCFS xmultiprocessing implementation would auto-set 'sys.path', this is still a relevant change:
"wcfs is not only multiprocessing and there might be other places that depend on correct sys.path to be set in the spawned subinterpreters." [1]
[1] wendelin.core!40 (comment 237529)
This is semantically not exactly related to !1815 (merged), but is still needed there to let all tests pass. To only merge levin.zimmermann/slapos@74fae446 to current master (92bec259) doesn't really 'fix' something, because current 'wendelin.core' version is before wendelin.core@e751b02c. That's why I also added levin.zimmermann/slapos@9360ddd8.