patch 9.1.0849: there are a few typos in the source

Problem:  there are a few typos in the source.
Solution: Correct typos (zeertzjq).

closes: #16026

Signed-off-by: zeertzjq <zeertzjq@outlook.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/po/Make_mvc.mak b/src/po/Make_mvc.mak
index f567d88..de03397 100644
--- a/src/po/Make_mvc.mak
+++ b/src/po/Make_mvc.mak
@@ -38,7 +38,7 @@
 !ENDIF
 
 PACKAGE = vim
-# Correct the following line for the where executeable file vim is
+# Correct the following line for the where executable file vim is
 # installed.  Please do not put the path in quotes.
 !IFNDEF VIMPROG
 VIMPROG = ..\vim.exe