Ray Strode authored Jun 04, 2018 and Ray Strode committed Jul 17, 2018

It's possible for the current working directory to be
a symlink.  Some programs, and notably, the
get_current_dir_name() libc api use the PWD environment
variable to know the symlink being used (so they don't
use the canonical name that the symlink points to)

This commit makes sure we set PWD in that case, to
allow those programs to show the right path.