patch 7.4.790

Problem:    Test fails when the autochdir feature is not available.  Test
            output contains the test script.
Solution:   Check for the autochdir feature. (Kazunobu Kuriyama)  Only write
            the relevant test output.

src/version.c

@@ -741,6 +741,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    790,
 /**/
     789,
 /**/