patch 8.2.2889: typo and verbose comment in Makefiles

Problem:    Typo and verbose comment in Makefiles.
Solution:   Fix typo. Use @#. (Ken Takata, closes #8252)
diff --git a/Makefile b/Makefile
index e377392..86c9f65 100644
--- a/Makefile
+++ b/Makefile
@@ -152,7 +152,7 @@
 #   > cd src
 #   > msvc2015.bat
 # - Build the console binary:
-#   > nmake -f Mae_mvc.mak
+#   > nmake -f Make_mvc.mak
 # - Run the tests and check the output:
 #   > nmake -f Make_mvc.mak testclean
 #   > nmake -f Make_mvc.mak test