This PR finalizes the chgrp implementation and includes tests for it.
I found an undocumented quirk regarding passing a missing group argument to chgrp that's neither mentioned in the man page nor in the specification. Supposedly,
chgrp '' a
Should change a's ctime but shouldn't modify its group. I think the behavior was taken from chown based on its man page. I added it in because it seems like a common pattern seeing that it's even on Rust's chown.
This PR finalizes the chgrp implementation and includes tests for it.
I found an undocumented quirk regarding passing a missing
groupargument to chgrp that's neither mentioned in the man page nor in the specification. Supposedly,Should change
a's ctime but shouldn't modify its group. I think the behavior was taken from chown based on its man page. I added it in because it seems like a common pattern seeing that it's even on Rust's chown.