MEDIUM: config: make str2listener() not accept datagram sockets anymore

str2listener() was temporarily hacked to support datagram sockets for
the log-forward listeners. This has has an undesirable side effect that
"bind udp@1.2.3.4:5555" was silently accepted as TCP for a bind line.

We don't need this hack anymore since the only user (log-forward) now
relies on str2receiver(). Now such an address will properly be rejected.
2 files changed