28a28a0c5b Squashed 'src/minisketch/' changes from 7eeb778fef..47f0a2d26f (fanquake)
Pull request description:
Contains:
* https://github.com/sipa/minisketch/pull/65
* https://github.com/sipa/minisketch/pull/66
Required for #25493.
ACKs for top commit:
achow101:
ACK dc375e5cce
hebasto:
ACK dc375e5cce, I have reviewed the code and it looks OK, I agree it can be merged.
Tree-SHA512: fbcd6cdc551770ff67d1df65ab171ce43c9eb7e7668da76da5c5b06865ed550527abcff661741a86c1535018a85a165619ff94ae3e6c7a695374b6c4f843c5ca