aos/network: reduce number of messsages on reconnect

Also incidentally send one abort per old association.

Change-Id: I2b7e98861367daaccd5f8ac79be7f1d1d23af89e
Signed-off-by: James Kuszmaul <james.kuszmaul@bluerivertech.com>
diff --git a/aos/network/sctp_client.cc b/aos/network/sctp_client.cc
index fac1114..a2c0439 100644
--- a/aos/network/sctp_client.cc
+++ b/aos/network/sctp_client.cc
@@ -52,7 +52,8 @@
   scheduler.assoc_value = SCTP_SS_PRIO;
   if (setsockopt(fd(), IPPROTO_SCTP, SCTP_STREAM_SCHEDULER, &scheduler,
                  sizeof(scheduler)) != 0) {
-    PLOG(WARNING) << "Failed to set scheduler";
+    LOG_FIRST_N(WARNING, 1) << "Failed to set scheduler: " << strerror(errno)
+                            << " [" << errno << "]";
   }
 }