Kyle Meyer writes:

 > Please add a period after the changelog entry.

Done.

 > Any reason not to pass limit as re-search-forward's BOUND instead?

I've looked at the history of this code, and some earlier comment
indicated that limit was ignored on purpose.

The only case where it'd make a difference with my patch is when limit
is in the middle of a latex fragment (since re-search-forward's BOUND
bounds the end of the match).

Now, AFAIU, this should almost never happen, since the fontified
region is extended
  + according to the font-lock-multiline text property, that latex
    fragment do have
  + and to contain matching begin/end delimiters.

I can think of a few edge cases where it may make a difference :
  - If you write a multiline fragment, and add $ delimiters
    afterwards, starting with the closing one. Then when you add the
    opening one, you wouldn't get fontification, I think
  - If you add an empty line in a multiline $ fragment by mistake, which
    breaks fontification, then remove it

-- 
Sébastien Miquel