man-pages: add documentation for statmount/listmount

V5: https://lore.kernel.org/linux-fsdevel/[email protected]/
V4: https://lore.kernel.org/linux-fsdevel/[email protected]/
V3: https://lore.kernel.org/linux-fsdevel/[email protected]/
V2: https://lore.kernel.org/linux-fsdevel/[email protected]/
V1: https://lore.kernel.org/linux-fsdevel/[email protected]/

v5->v6:
- Reworked all of the NULL related comments.
- Addressed the other review comments.

v4->v5:
- Described bufsize.
- Moved the general description of some of the fields to under the field labels themselves, and generally reworked everything to be more specific.
- Addressed the various formatting/wording review comments.

v3->v4:
- Addressed review comments.

v2->v3:
- Removed a spurious \t comment in listmount.2 (took me a while to figure out why it was needed in statmount.2 but not listmount.2, it's because it lets you know that there's a TS in the manpage).
- Fixed some unbalanced " in both pages
- Removed a EE in the nf section which is apparently not needed

v1->v2:
- Dropped the statx patch as Alejandro already took it (thanks!)
- Reworked everything to use semantic newlines
- Addressed all of the comments on the statmount.2 man page

Josef

Josef Bacik (2):
statmount.2: New page describing the statmount syscall listmount.2: New page describing the listmount syscall

 man/man2/listmount.2 | 112 +++++++++++++++++
 man/man2/statmount.2 | 281 +++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 393 insertions(+)
 create mode 100644 man/man2/listmount.2
 create mode 100644 man/man2/statmount.2

2.43.0