Make cts work with pacemaker 1.1.9

This is counterpart of adcc21a30c70a40861736bc9d902c2ef2d4b42c4 in
pacemaker.

Signed-off-by: Jan Friesse <jfriesse@redhat.com>
Improved POSIX-compliant handling of getpwnam_r() and getgrnam_r().

Signed-off-by: Andrei Belov <defanator@gmail.com>
Reviewed-by: Jan Friesse <jfriesse@redhat.com>