word fix; from edgar pettijohn

Remove sentences in RETURN VALUES sections saying that functions with
void return types 'return no value'. This is obvious and therefore
unneccessary to mention.

We spare rewind(3)'s sentence becaus

Remove sentences in RETURN VALUES sections saying that functions with
void return types 'return no value'. This is obvious and therefore
unneccessary to mention.

We spare rewind(3)'s sentence because espie@ pointed out that it's a
warning - the function masks a potential error.

This commit also adds a sentence to X509_free clarifying that it's
NULL-safe. This bit was discussed with doug@.

ok martijn@, sentiment supported by schwarze@

show more ...

Sync hcreate(3) with NetBSD, adding some caveats.

OK jmc

First pass at removing clauses 3 and 4 from NetBSD licenses.

Not sure what's more surprising: how long it took for NetBSD to
catch up to the rest of the BSDs (including UCB), or the amount of
code t

First pass at removing clauses 3 and 4 from NetBSD licenses.

Not sure what's more surprising: how long it took for NetBSD to
catch up to the rest of the BSDs (including UCB), or the amount of
code that NetBSD has claimed for itself without attributing to the
actual authors.

OK deraadt@

show more ...

convert to new .Dd format;

document posixness;
fixes pr #4996, from joachim schipper;

- typos, punctuation, layout, macro tweaks
- break long lines

ok jmc

Working hcreate(3) et al from NetBSD (cgd) via ray at cyth dot net.
Now passes the regress tests.