Redirect map hash bucket size

[steveworley]

When adding a redirect map configuration nginx produces an error under certain circumstances based on the map_hash_bucket_size.

2021/03/18 04:36:09 [emerg] 155#155: could not build map_hash, you should increase map_hash_bucket_size: 64
nginx: [emerg] could not build map_hash, you should increase map_hash_bucket_size: 64

The sample configuration I used was:

$ cat /etc/nginx/redirects-map.conf
example.com/sites/default/files/old_file.pdf /search

If this is a regex match there is no problems.

~*example.com/sites/default/files/old_file.pdf /search

It would be nice to be able to control the bucket size.