[PATCH 2/4] GDB: Document the unix::/path/to/socket of remote connection.

[Eli Zaretskii]

> From: John Darrington <john@darrington.wattle.id.au>
> Cc: John Darrington <john@darrington.wattle.id.au>
> Date: Sat, 13 Oct 2018 19:57:59 +0200
> 
> gdb/doc:
> * gdb.texinfo (Connecting)[Remote Connection Commands]:  Provide alternative
>   unix::/tmp/xxx example.  Include @code{unix::@var{local-socket} in
>   the list of remote and extended-remote syntaxes.

OK.