Martin von Zweigbergk <martinvonz@google.com> [Mon, 13 Mar 2017 21:43:17 -0700] rev 31406
pager: if old pager extensions is enabled, respect pager.attend
This patch makes us respect pager.attend again if the extension is
enabled. It also brings back the default attend list, so e.g. summary
is not paged by default, just like it used to be before pager was
moved into core.