Features:
-* set $SHELL where we set $HOME and $USER when User= is set of a service, drop its manual setting from user@.service
-
* we probably should replace the left-over uses of strv_append() and replace them by strv_push() or strv_extend()
-* logind should forget about fb devices in favour of going drm only
-
* move config_parse_path_strv() out of conf-parser.c
* libdsystemd-bus should expose utf8 validation calls