social: implement enter/leave/messaging; psyc: improvements and fixes

- social: implement enter/leave, send/receive messages, slicer
- psyc, social: add struct GNUNET_PSYC_Message for single-fragment join messages
- psyc: add message callback in addition to message part callback
- client_manager, social, psyc, multicast: add disconnect callback

1 files changed, 1 insertions, 1 deletions

diff --git a/contrib/gnunet-logread b/contrib/gnunet-logread
index 773a5ff93..173ed2387 100755
--- a/contrib/gnunet-logread
+++ b/contrib/gnunet-logread
@@ -47,7 +47,7 @@ if (exists $opts{n})
     $ipc = $opts{i} || '/tmp/gnunet-logread-ipc.sock';
     $msg_level = exists $levels{$opts{L}} ? $levels{$opts{L}} : 0;
     $msg_regex = $opts{m};
-    print STDERR "RE: /$msg_regex/\n";
+    print STDERR "RE: /$msg_regex/\n" if defined $msg_regex;
     open IPC, '>', $ipc or die "$ipc: $!\n";
 }