[Serusers] set_advertised_adress syntax

[Erik Versaevel]

What is the correct syntax for set_advertised_adress?
set_advertised_adress(1.2.3.4)
set_advertised_adress("1.2.3.4")
set_advertised_adress(src_ip)
set_advertised_adress(foo.bar)
set_advertised_adress("foo.bar")

all result in :
     0(14849) parse error (72,25-26): syntax error
     0(14849) parse error (72,26-27): bad argument, string expected