Many uClibc based environments lack wtmp and utmp support, therfore remove
the code updating the wtmp information.
-Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>
+Signed-off-by: Jo-Philipp Wich <jo@mein.io>
--- a/pppd/sys-linux.c
+++ b/pppd/sys-linux.c