Script to propagate ruleset comment changes
Here's a fairly rudimentary script to take some of the drudgery out of maintaining spec format comments.
Run in a git working directory, it takes changes made to one ruleset on a branch and attempts to propagate them to all other rulesets. It doesn't attempt to understand tilesets yet. It doesn't try to also edit data/ruledit/comments.txt because of the extra quoting (but reminds you that you have to).
It's not actually specific to comment changes, but is likely to be of most use for those.