Mark ip string buffers which could be reduced.

In two places buffers have been created with a size of 128 bytes which
could be reduced to INET6_ADDRSTRLEN to still hold a full IP address.
These places have been marked as they are presently big enough to handle
the needs of storing a printable IPv6 address.

src/cluster.c

@@ -306,7 +306,7 @@ void freeClusterLink(clusterLink *link) {
 
 void clusterAcceptHandler(aeEventLoop *el, int fd, void *privdata, int mask) {
     int cport, cfd;
-    char cip[128];
+    char cip[128];      /* Could use INET6_ADDRSTRLEN here, but its smaller */
     clusterLink *link;
     REDIS_NOTUSED(el);
     REDIS_NOTUSED(mask);

src/networking.c

@@ -552,7 +552,7 @@ static void acceptCommonHandler(int fd, int flags) {
 
 void acceptTcpHandler(aeEventLoop *el, int fd, void *privdata, int mask) {
     int cport, cfd;
-    char cip[128];
+    char cip[128];      /* Could use INET6_ADDRSTRLEN here, but its smaller */
     REDIS_NOTUSED(el);
     REDIS_NOTUSED(mask);
     REDIS_NOTUSED(privdata);