patch 9.0.0120: MS-Windows GUI: cannot use AltGr + Space

Problem:    MS-Windows GUI: cannot use AltGr + Space.
Solution:   Check for VK_MENU instead of VK_LMENU. (Anton Sharonov,
            closes #10820, closes #10753)
diff --git a/src/version.c b/src/version.c
index 0a38f39..c5b7679 100644
--- a/src/version.c
+++ b/src/version.c
@@ -736,6 +736,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    120,
+/**/
     119,
 /**/
     118,