Update sysutils/fabric to 1.8.2

pkgsrc changes:
---------------
FETCH_USING= curl. Yes, I know it's a hack, but at least it works on the
NetBSD version installed on my laptop.

upstream changes:
-----------------

1.8.2 2014-02-14

    [Bug] #1046: Fix typo preventing use of ProxyCommand in some
situations. Thanks to Keith Yang.
    [Bug] #917: Correct an issue with put(use_sudo=True, mode=xxx) where
the chmod was trying to apply to the wrong location.
Thanks to Remco (@nl5887) for catch & patch.
    [Bug] #955: Quote directories created as part of put‘s
recursive directory uploads when use_sudo=True so directories with shell
meta-characters (such as spaces) work correctly. Thanks to John Harris for the catch.

1.8.1 2013-12-24

    [Bug] #948: Handle connection failures due to server load and try
connecting to hosts a number of times specified in env.connection_attempts.
    [Bug] #957: Fix bug preventing use of env.gateway with targets requiring
password authentication. Thanks to Daniel González, @Bengrunt and @adrianbn for their bug reports.
    [Bug] #956: Fix pty size detection when running inside Emacs.
Thanks to @akitada for catch & patch.

(gls)