runtime(vim): Update base-syntax, improve :echo and :execute highlighting (#14199) Commit: https://github.com/vim/vim/commit/61887b3d6fd8b441c90416ea7855e1fe5a9ae32c Author: dkearns <dougkearns@gmail.com> Date: Fri Mar 15 23:45:48 2024 +1100 runtime(vim): Update base-syntax, improve :echo and :execute highlighting (https://github.com/vim/vim/issues/14199) Improve :echo and :execute highlighting. - Add better line-continuation support for both commands. - Improve the :execute command's expression argument matching. - Remove the fix for issue #9987 as this is now handled by correctly matching the parens in :echo (...) as operator parens. Signed-off-by: Doug Kearns <dougkearns@gmail.com> Signed-off-by: Christian Brabandt <cb@256bit.org>