patch 7.4.1160

Problem:    No error for jsondecode('"').
Solution:   Give an error message for missing double quote.

src/version.c

@@ -741,6 +741,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1160,
 /**/
     1159,
 /**/