ttcn3-tcpdump-start.sh: Log issue with packet dumper not properly started

Change-Id: I50af5eb16a000c4f3585a3458f9130a349eff097
diff --git a/ttcn3-tcpdump-start.sh b/ttcn3-tcpdump-start.sh
index 36aa320..8564cd5 100755
--- a/ttcn3-tcpdump-start.sh
+++ b/ttcn3-tcpdump-start.sh
@@ -109,6 +109,7 @@
 	sleep 1
 	i=$((i+1))
 	if [ $i -eq 10 ]; then
+		echo "Packet dumper didn't start filling pcap file after $i seconds!!!"
 		break
 	fi
 done