MFC r328297:

Don't escape '?'s in protocol output.

This isn't required by mandoc and is nonfunctional in groff.

PR: 224632
Reported by: w.schwarzenfeld@utanet.at
Differential Revision: https://reviews.freebsd.org/D13779

MFC r318179:

procstat(1): also reference icmp(4) and sctp(4)

This was missed in the previous commit by accident.

MFC with: r318178

MFC r318175:

procstat(1): clarify the Signal Disposition section

- Fix a typo (SIGIGN -> SIG_IGN). Use .Dv when referencing SIG_IGN.
- Use semi-colons as soft breaks when separating sentences for
the FLAGS section.
- Tweak wording for C slightly to flow better and to be a bit
more technically correct (signals with handlers installed will
be caught by the target program).
- Reference signal(3) in the SEE ALSO section.

MFC r318178:

procstat(1): document all possible `PRO` (network protocol) values

Reference the appropriate section 4 manpages for networking
protocols.

MFC r279842, r279875

Implement basic reporting of cpuset info via the -S option

Obtained from: Netflix, Inc.

MFC 266322,266323:
- Use 'RESOURCE' instead of the more generic 'TYPE' for the resource name
column header when displaying resource usage. This more closely matches
other procstat displays.
- Add descriptions of the display formats for -e, -l, -r, and -x. Fix a few
typos in indent settings while here.

MFC 266293:
- Add support for dumping current resource usage for processes via a new -r
flag to procstat.
- Add an -H flag to request information about threads rather than processes
when dumping statistics. Currently it is only used for -r to display
resource usage for individual threads instead of the entire process.

MFC 266296:
Correct some minor nits in the per-thread signal format description such
as missing posessives and misordering of fields.

MFC 261780:
Expose OBJT_MGTDEVICE VM objects used for GEM/TTM with drm2 as an
explicit object type.

MFC r257234:
With r247602, the "c" flag is no longer printed as a file descriptor flag.

Approved by: re (gjb)

MFC r279842, r279875

Implement basic reporting of cpuset info via the -S option

Obtained from: Netflix, Inc.

MFC 266322,266323:
- Use 'RESOURCE' instead of the more generic 'TYPE' for the resource name
column header when displaying resource usage. This more closely matches
other procstat displays.
- Add descriptions of the display formats for -e, -l, -r, and -x. Fix a few
typos in indent settings while here.

MFC 266293:
- Add support for dumping current resource usage for processes via a new -r
flag to procstat.
- Add an -H flag to request information about threads rather than processes
when dumping statistics. Currently it is only used for -r to display
resource usage for individual threads instead of the entire process.

MFC 266296:
Correct some minor nits in the per-thread signal format description such
as missing posessives and misordering of fields.

MFC 261780:
Expose OBJT_MGTDEVICE VM objects used for GEM/TTM with drm2 as an
explicit object type.

MFC r257234:
With r247602, the "c" flag is no longer printed as a file descriptor flag.

Approved by: re (gjb)