Error validating server certificate etiquette of dating
So svn2git seems to be waiting on git-svn, which is waiting on me for input, but I'm not seeing the message.
For more information, see Understanding TLS Certificates.
Otherwise, make sure that this computer can access the revocation server.
If there is a firewall or proxy server in between this computer and the revocation server, make sure that your computer is configured to traverse the obstacle.
In either case, svn2git sits doing nothing (as far as I can tell) and not giving me any feedback.
This should cause svn2git to either quit, or print a reassuring message about how it's forging ahead.