for the mantissa and exponent.  This may increase the error by up
to one bit in last position.

Add a VNUMpfx() variant which does not barf NAN on suffixes.

VNUM() function which converts (all of!) a string to a floating point
number.

I didn't use Dridi's version, because I wanted slightly different
semantics (the NAN return) and I happen to be partial to the %e format,
which his version did not support.

One too many `:' will end up in the text.

it's just another division.

Fix m00020 to use valid weekdays

Don't smash the TZ variable, we don't rely on it any more.

strftime(3)/strptime(3) to avoid getting tangled up in the LOCALE.

We're not out of the LOCALE-tangle yet, but this was the big part.

Inspired by patches from:	Dridi Boukelmoune

to avoid some pointless double-buffering.

While here also drop synopsis indentation.

Prompted by #1681

frob the file after open.

jail_unix makes the file varnish:varnish 0600

around socket operations which may be on reserved ports.

Neuter solaris jail entirely on platforms which don't have it.

Spotted by xavier on irc.

Thanks to Dridi Boukelmoune <dridi.boukelmoune@zenika.com> for spotting typos

The retires the -u and -g arguments, and the user/group/group_cc
parameters, so that the jail-setup cannot be manipulated from CLI at all.

$user and group_cc are now sub-arguments to -junix, for instance:

	-junix,user=varnish1,ccgroup=ccowner

There is no group= subargument, the group information is taken
from the user id in question.

If no -j argument is specified, attempt:

	-junix,user=varnish

but fail silently if not possible.

The "vident" now contains information about jail-config.

Sandbox_solaris is not converted yet, (I'm hoping that Nils will
help with that.

When no -j argument is specified, walk the list to get the most
capable jail technology which can run in the given circumstances.

Due to our somewhat spendthrift ways with argument letters, it
is not realistic to repurpose -[sS]andbox or -[pP]rivsep argument
letters, so the terminology ended up being "jail" because -j was free.

Right now no jails are implemented, and the code does nothing.