The following script makes it a no-brainer:
% NEXT_YEAR=2015; ag -l 'Copyright.*Wiegley' \
| xargs sed -i '' -e "s/\(Copyright.*\)-20[0-9]\{2\}/\1-${NEXT_YEAR}/"
It is no longer done in calc_posts, but recursively on each account.
This allows value expressions to ask statistical questions, like
"earliest cleared posting?" (TBD) from any specific account, computed
lazily.
