- Sort options alphabetically
- Add missing arguments (e.g., "list" to -a)
- Adjust the width of Bl
Clean up the synopsis section & fix mandoc warnings
The synopsis section had two very similar entries. The flags documented by
the first one were a strict subset of the second one. Let's just keep only
the second entry for simplicity.
Let's have two entries in the synopsis:
- chpass now lists options which can be used for non-NIS-specific
functionalities.
- ypchpass additionally lists the NIS-specific flags.
Technically, it is an artificial distinction, as chpass and ypchpass behave
identically. Nevertheless, it might help navigating the synopsis section.