with help from claudio@

responsive during packages compilation, especially on slower machines.
feedback welcome from people building ports
discussed with deraadt@

some cases also the serial console) such that X can use it as its VT
when running without root privileges.
ok jsg@, matthieu@

raising openfiles-cur above the implicit -max value (1024 on at least the
common arch) results in the setting not being applied at all.
Earlier version OK tom@ danj@ ajacoutot@ benno@ krw@ beck@, suggestion about
openfiles= from millert@ - changes in this version are to use 1024 for -max
rather than 512 to avoid changing the existing hard limit, and just use
openfiles= for bgpd/unbound where max and cur are the same value.

"No problem" deraadt@

matter much -- and "uucp" is just stupid in 2016.
ok rpe

While here, also remove two forgotten descriptions for long obsolete
devices.

ok deraadt@ yasuoka@ reyk@

unused for now, but I plan to convert all programs in base to use it in
a future diff. /dev/bpf0 is for compatibility with existing binaries
and is to be removed after a transition period.
ok rpe krw, for the installer part
"Let's see it hit the tree." deraadt

and pwd_gensalt.c - so remove it from the default /etc/login.conf files as well.
ok millert@

OK dlg@ mpi@

but these are the only two lines in any disktab that do it this way.
ok miod@

flags in the disklabel. These flags were discarded in 2006.
Remove documentation for and instances of 'ty'. Add instances of
'dt' that were missing. Use 'floppy' as the value of 'dt' for all
floppies and 'rdroot' for all boot images/miniroots.
Add 'rdroot' to dktypenames and an associated #define DTYPE_RDROOT,
since 'dt' values are parsed by matching entries in dktypenames[].
Slightly tweaked part of larger cleanup diff previously ok deraadt@.

ok deraadt@

ok deraadt@

than the daemon class' default of 128.  Reminded by/ok ajacoutot@

ok miod@

ok miod@

ok henning@

ok deraadt millert

existing swap partition for an easier initial installation.