Patches for editors/emacs27

[iquiw <iku.iwasa%gmail.com@localhost>]

Hi,

(I sent this mail yesterday, but it looks not delivered. Sorry if you
got duplicates.)

I have 2 patches for editors/emacs27.
Please find the following Gist page.
https://gist.github.com/iquiw/7e3dd305e333e4626595384011ed8d1d

One is to add a pkgsrc option to link "jansson" package for native JSON support,
which is one of the main features in Emacs 27.

Another one is a workaround that "emacsclient" fails to start due to
invalid socket owner.
On NetBSD, "fstat" for a Unix domain socket seems to report 0 as its
owner uid and
thus the owner check fails.
There may be a better fix for this though.

Thanks in advance.
iku