rtr/packets.c: Fixing sizeof bugs
rtr/packets.c: Fixing sizeof bugs

const char *a = "...";
sizeof(a); //=> a size of the pointer: 4B @32bit, 8B @64bit

const char a[] = "...";
sizeof(a); //=> a length of the string

rtrlib/rtrlib,rtrlib/rtrlib,rtrlib/rtrlib