pkexec: Set process environment from pam_getenvlist()
pkexec: Set process environment from pam_getenvlist()

Various pam modules provide environment variables that are intended to be set
in the environment of the pam session.  pkexec needs to process the output of
pam_getenvlist() to get these.

https://bugs.freedesktop.org/show_bug.cgi?id=62016

Distrotech/polkit,cgwalters/polkit,magcius/polkit,Distrotech/polkit,krytarowski/polkit,magcius/polkit,Distrotech/polkit,cgwalters/polkit,magcius/polkit,Distrotech/polkit,cgwalters/polkit,Distrotech/polkit,magcius/polkit,krytarowski/polkit,cgwalters/polkit,magcius/polkit,krytarowski/polkit,krytarowski/polkit,cgwalters/polkit,krytarowski/polkit,Distrotech/polkit