review fixes

libs/main/io_devices/piethernet.cpp

@@ -104,6 +104,7 @@
 PIString getSockAddr(sockaddr * s) {
 	if (!s) return PIString();
 	char buf[INET_ADDRSTRLEN];
+	memset(&buf, 0, INET_ADDRSTRLEN);
 	const char * r = inet_ntop(AF_INET, &((sockaddr_in *)s)->sin_addr, buf, sizeof(buf));
 	return r ? PIStringAscii(r) : PIString();
 }