Re: [PATCH v4 0/1] MR1774: Coverity fixes

[Alex Henrie (＠alexhenrie)]

I just realized that the memset in build_zonemap_from_reg is completely unnecessary. You can simplify the code like this:

```
            if (used == allocated) {
                LPDWORD new_data;

allocated *= 2;
                new_data = realloc(data, allocated * sizeof(DWORD));
                if (!new_data)
                    goto cleanup;

data = new_data;
            }
```