runtime: fix :compiler leaving behind a g:makeprg variable (#14414) Commit: https://github.com/vim/vim/commit/b73faa1c02d0911a60bddd1ba343cf620f2cd124 Author: zeertzjq <zeertzjq@outlook.com> Date: Sat Apr 6 02:01:16 2024 +0800 runtime: fix :compiler leaving behind a g:makeprg variable (https://github.com/vim/vim/issues/14414) Problem: :compiler may leave behind a g:makeprg variable after https://github.com/vim/vim/issues/14336. Solution: Use a script local variable. Signed-off-by: zeertzjq <zeertzjq@outlook.com> Signed-off-by: Christian Brabandt <cb@256bit.org>