library: PCUIF_CodecPort: Log PCU socket connect error string

Change-Id: I7045061770cda5b50d05dbf756656e380084a703
diff --git a/library/PCUIF_CodecPort.ttcn b/library/PCUIF_CodecPort.ttcn
index fe428af..c642202 100644
--- a/library/PCUIF_CodecPort.ttcn
+++ b/library/PCUIF_CodecPort.ttcn
@@ -65,7 +65,11 @@
 	[] pt.receive(UD_connect_result:?) -> value res {
 		if (ispresent(res.result) and ispresent(res.result.result_code) and
 		    res.result.result_code == ERROR) {
-			setverdict(fail, "Error connecting to PCU socket");
+			if (ispresent(res.result.err)) {
+				setverdict(fail, "Error connecting to PCU socket: ", res.result.err);
+			} else {
+				setverdict(fail, "Error connecting to PCU socket");
+			}
 			self.stop;
 		} else {
 			return res.id;