Minor Description
lfs hsm_xxx commands and their internal handlers that take multiple files tend to stop processing on the first failure. This is non-unixy and I would argue that these commands are less useful for it. In general, when we have a command that does something on multiple things we should have it do on as many of them as possible, print an error (if possible) on each that failed, and return an error code if any of them failed.
This could probably also apply to several other lfs commands as well.