patch 9.0.0940: crash when typing a letter in a terminal window

Problem:    Crash when typing a letter in a terminal window. (Shane-XB-Qian)
Solution:   Use the "vterm" variable instead of getting the terminal pointer
            from the current buffer.  (closes #11608)

src/version.c

@@ -695,6 +695,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    940,
 /**/
     939,
 /**/