poudriere build of fossil fails to download source tarball. 2.15.1 has been replaced by 2.15.2
Fixes this bug:
Fix the client-side SSL connection setup so that it actually verifies the hostname on the certification from the seerver
Note that the update needs MFH into 2021Q3 branch so that fossil can build for quarterly ports.
I've updated the fossil port on main and 2021Q3 to 2.16.