Explicit port number in servers file entry doesn't work

[pem]

Looking at the code, it seems either of these lines should work in the servers file:

hostname:1812 secret
hostname:1812:secret

but it doesn't. We get

radcli: rc_find_server_addr: rc_find_server: couldn't find RADIUS server hostname in /.../servers
radcli: rc_send_server_ctx: rc_send_server: unable to find server: hostname

in /var/log/messages. Now, 1812 is redundant since it's the default, so simply omitting the port like this works:

hostname secret

but it would be a problem if you run the server on a non-standard port.
(I have looked at the code in config.c, but not so easy to figure out what's going on there...)