branches: 1.8.12;
Add entry for prop_ingest in the NAME section.

Use .Fn to refer a function name instead of Nm.
Also, use Xr to refer problib(3) in the HISTORY section instead of Nm.

While parsing the man pages, any .Nm occurrence gets replaced by the
value specified in the NAME section. Referencing individual function
names with .Nm was causing makemandb(8) to replicate the complete
NAME section for every such occurrence. This was leading to an
ugly looking snippet in apropos(1)'s output when searched for
any of these man pages.

branches: 1.6.30; 1.6.34;
Fix typo (specifed -> specified).

Convert TNF licenses to new 2 clause variant

branches: 1.4.4;
PR/37838: Stathis Kamperis: proplib documentation enhancements

branches: 1.3.2;
boolean_t -> bool
TRUE -> true
FALSE -> false

branches: 1.2.2; 1.2.6; 1.2.18;
Remove duplicate word. Markup fixes.

Several changes to proplib:
- Arrays can now be externalized and internalized in the same way
dictionaries can.
- Add new "externalize to file" and "internalize from file" functions
to make reading a property list from a file and writing a property
list to a file more convenient.
- Many assertions in the object implementations are gone. Instead,
calling an accessor for one object type with a different object type
as an argument will return a suitable "invalid" value.
- prop_object_type() now returns a new PROP_TYPE_UNKNOWN value if called
with a NULL object.
- Externalized property lists now contain a reference to the Apple XML
plist DTD.
- Add a new prop_ingest(3) facility, which provides a convenient way to
translate a dictionary into an arbitrary binary representation.