FIX: minor variable fixes when compiling on linux.

cmddata.c: In function ‘Cmdmandecoderaw’:
cmddata.c:420:2: warning: format ‘%i’ expects argument of type ‘int *’, but argument 4 has type ‘size_t *’ [-Wformat=]
  sscanf(Cmd, "%i %i", &invert, &maxErr);
  ^

cmdlfem4x.c: In function ‘CmdEM410xRead’:
cmdlfem4x.c:58:2: warning: format ‘%llx’ expects argument of type ‘long long unsigned int’, but argument 3 has type ‘uint64_t’ [-Wformat=]
  sprintf(id, "%010llx",lo);
  ^