fixed some new warnings from g++ 8.3.0

QnetDVRPTR.cpp

@@ -1872,7 +1872,7 @@ char *cleanstr (char *Text)
 	for (unsigned int x=0; x < strlen(Text); x++) {
 		if ((Text[x] > 0x1F) && (Text[x] < 0x7F)) {
 			if (Text[x] == '\'') {
-				strncat(cbuf, "\\", 1);
+				strcat(cbuf, "\\");
 			}
 			strncat(cbuf, &Text[x], 1);
 		}

QnetGateway.cpp

@@ -2475,8 +2475,6 @@ bool CQnetGateway::Init(char *cfgfile)
 			printf("Loaded voicemail file: %s for mod %d\n", vm[i].file, i);
 
 		// the repeater modules run on these ports
-		memset(&toRptr[i],0,sizeof(toRptr[i]));
-
 		memset(toRptr[i].saved_hdr.title, 0, 56);
 		toRptr[i].saved_addr.Initialize(af_family);
 

QnetLink.cpp

@@ -1988,7 +1988,7 @@ void CQnetLink::Process()
 					// printf("Remote station %s %s requested version\n", inbound_ptr->call, ip);
 
 					buf[0] = 9;
-					strncpy((char *)buf + 4, LINK_VERSION, 4);
+					memcpy((char *)buf + 4, "1.00", 4);
 					buf[8] = 0;
 
 					sendto(ref_g2_sock, buf, 9, 0, (struct sockaddr *)&fromDst4, sizeof(struct sockaddr_in));