[sr-dev] Re: [kamailio/kamailio] nathelper: fixed handle_ruri_alias() for alias being an IPv6 (PR #3913)

Over all, it should be ok to merge, just with the note that it is preferred to declare the variable at the beginning of the block. A few in this PR are in the middle.

It is ok to have them at the beginning of the functions or at the beginning of the blocks, e.g.,:

``` if(cond) { int v; ... v = ... } ```

Also, I think that rather recent someone reported that declaring the iterator variable in the `for` (i.e., `for(int i = 0; ...) { ... }`) was giving some error on some old but still used OS. So maybe it should still be avoided for a while.

I think there are places in the code where the above suggestions were not followed, but thought it worth listing them here.