updated for version 7.3.290

Problem:    When a BufWriteCmd autocommand resets 'modified' this doesn't
            change older buffer states to be marked as 'modified' like
            ":write" does.  (Yukihiro Nakadaira)
Solution:   When the BufWriteCmd resets 'modified' then adjust the undo
            information like ":write" does.

src/version.c

@@ -709,6 +709,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    290,
 /**/
     289,
 /**/