[core] clarify server.username = "root" error msg
[core] clarify server.username = "root" error msg

clarify server.username = "root" error message
clarify server.groupname = "root" error message

Suggest commenting out those directives in lighttpd.conf if set to root.

Just like any normal unix program, lighttpd runs as the
user/group under which the process was started, unless you run
lighttpd as root and instruct lighttpd to setuid/setgid to a
different user/group (via server.username and server.groupname).
That *different* user/group should not be uid/gid 0, or else they
are not *different* from root and might be a configuration mistake.

x-ref:
  https://forum.snapcraft.io/t/lighttpd-snap-reports-all-well-but-doesnt-serve-up-anything/27594/8

gstrauss/lighttpd1.4,lighttpd/lighttpd1.4,lighttpd/lighttpd1.4,lighttpd/lighttpd1.4,lighttpd/lighttpd1.4,lighttpd/lighttpd1.4,lighttpd/lighttpd1.4,gstrauss/lighttpd1.4,gstrauss/lighttpd1.4,gstrauss/lighttpd1.4,gstrauss/lighttpd1.4,gstrauss/lighttpd1.4