[PATCH 1 of 6 v2] pager: don't terminate with extreme prejudice on SIGPIPE (BC)

[Jun Wu]

Excerpts from Yuya Nishihara's message of 2017-02-03 22:59:07 +0900:
> On Thu, 2 Feb 2017 12:04:09 -0800, Bryan O'Sullivan wrote:
> > On Thu, Feb 2, 2017 at 11:18 AM, Simon Farnsworth <simonfar at fb.com> wrote:
> > 
> > > pager: don't terminate with extreme prejudice on SIGPIPE (BC)
> > >
> > 
> > Looks good!
> 
> Queued this first patch, thanks.

This actually breaks the pager practically. Running "hg log" with a long
history will not end even when the user presses "q" to exit the pager.