patch 7.4.1188

Problem:    Using older JSON standard.
Solution:   Update the link.  Adjust the text a bit.

src/version.c

@@ -746,6 +746,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1188,
 /**/
     1187,
 /**/