runtime(doc): Fix notation of "Vim script" and "Vim9 script"

closes: #17213

Signed-off-by: Hirohito Higashi <h.east.727@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/Make_mvc.mak b/src/Make_mvc.mak
index ab6bd6c..d6dbd2b 100644
--- a/src/Make_mvc.mak
+++ b/src/Make_mvc.mak
@@ -1430,14 +1430,14 @@
 	$(MAKE) /NOLOGO -f Make_mvc.mak clean
 	cd ..
 
-# Run vim script to generate the Ex command lookup table.
+# Run Vim script to generate the Ex command lookup table.
 # This only needs to be run when a command name has been added or changed.
 # If this fails because you don't have Vim yet, first build and install Vim
 # without changes.
 cmdidxs: ex_cmds.h
 	vim --clean -N -X --not-a-term -u create_cmdidxs.vim -c quit
 
-# Run vim script to generate the normal/visual mode command lookup table.
+# Run Vim script to generate the normal/visual mode command lookup table.
 # This only needs to be run when a new normal/visual mode command has been
 # added.  If this fails because you don't have Vim yet:
 #   - change nv_cmds[] in nv_cmds.h to add the new normal/visual mode command.