Update aaa_base to rev 474 via SR 833187
https://build.opensuse.org/request/show/833187
by user lnussel + dimstar_suse
- Update to version 84.87+git20200909.ee4a72c:
* /etc/profile.d/xdg-environment.{sh,csh}: Added /usr/etc/xdg to $XDG_CONFIG_DIRS
* sysctl.d/50-default.conf: allow everybody to create IPPROTO_ICMP sockets (bsc#1174504)