vim-patch:8.1.2331: the option.c file is still very big (#19954)

Problem:    The option.c file is still very big.
Solution:   Move a few functions to where they fit better. (Yegappan
            Lakshmanan, closes vim/vim#4895)
7bae0b1bc8

vim-patch:9.0.0271: using INIT() in non-header files

Problem:    Using INIT() in non-header files.
Solution:   Remove INIT(). (closes vim/vim#10981)
9b7d2a9596

src/nvim/optionstr.c

@@ -18,6 +18,7 @@
 #include "nvim/drawscreen.h"
 #include "nvim/eval.h"
 #include "nvim/eval/vars.h"
+#include "nvim/ex_getln.h"
 #include "nvim/hardcopy.h"
 #include "nvim/highlight_group.h"
 #include "nvim/indent.h"