This is the command invoked repeatedly to make the changes:
:%s/^\(.*\)|\%(\*\(\d\+\)\)\?$\n\1|\%(\*\(\d\+\)\)\?$/\=submatch(1)..'|*'..(max([str2nr(submatch(2)),1])+max([str2nr(submatch(3)),1]))/g
Flaky test (osx):
[ FAILED ] ...is/build/neovim/neovim/test/functional/lua/loop_spec.lua @ 23: vim.loop timer
...is/build/neovim/neovim/test/functional/lua/loop_spec.lua:56: Expected objects to be the same.
Passed in:
(number) 0
Expected:
(number) 2
stack traceback:
...is/build/neovim/neovim/test/functional/lua/loop_spec.lua:56: in function <...is/build/neovim/neovim/test/functional/lua/loop_spec.lua:23>
It was bumped from sleeping for 20ms to 50ms in d33aaa0f5f already.