[PATCH 2 of 2 pager] pager: use absolute_import

[Augie Fackler]

> On Feb 29, 2016, at 13:10, Gregory Szorc <gregory.szorc at gmail.com> wrote:
> 
>> import atexit, sys, os, signal, subprocess
> 
> These should be on separate lines. Does a test not complain?

No test-check-*.t test complained for me.