[PATCH] pager: remove quiet flag

[Eduard-Cristian Stefan]

Hackable Mercurial:

$ h diff
** unknown exception encountered, please report by visiting
**  http://mercurial.selenic.com/wiki/BugTracker
** Python 2.7.3 (default, Apr 10 2012, 23:31:26) [MSC v.1500 32 bit (Intel)]
** Mercurial Distributed SCM (version 2.2-rc+76-be786c5ac0a8)
** Extensions loaded: convert, extdiff, mq, patchbomb, rebase, transplant, 00common, mercurial_keyring, pager
Traceback (most recent call last):
   File "d:\hg\h.py", line 39, in <module>
     mercurial.dispatch.run()
   File "d:\hg\mercurial\dispatch.py", line 27, in run
     sys.exit((dispatch(request(sys.argv[1:])) or 0) & 255)
   File "d:\hg\mercurial\dispatch.py", line 64, in dispatch
     return _runcatch(req)
   File "d:\hg\mercurial\dispatch.py", line 87, in _runcatch
     return _dispatch(req)
   File "d:\hg\mercurial\dispatch.py", line 696, in _dispatch
     cmdpats, cmdoptions)
   File "d:\hg\mercurial\dispatch.py", line 472, in runcommand
     ret = _runcommand(ui, options, cmd, d)
   File "d:\hg\mercurial\extensions.py", line 184, in wrap
     return wrapper(origfn, *args, **kwargs)
   File "d:\hg\hgext\pager.py", line 89, in pagecmd
     signal.signal(signal.SIGPIPE, signal.SIG_DFL)
AttributeError: 'module' object has no attribute 'SIGPIPE'