The Windows support has been completely removed from the source tree
and BIND 9 now no longer supports native compilation on Windows.
We might consider reviewing mingw-w64 port if contributed by external
party, but no development efforts will be put into making BIND 9 compile
and run on Windows again.
This commit fixes isc_glob function on windows environments.
The file_list_t * object pointed to by pglob->reserved was missing
ISC_LIST_INIT intialization macro.