patch 7.4.1468

Problem:    Sort test doesn't test with "1" argument.
Solution:   Also test ignore-case sorting. (Yasuhiro Matsumoto)

src/version.c

@@ -743,6 +743,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1468,
 /**/
     1467,
 /**/