patch 7.4.917

Problem:    Compiler warning for comparing signed and unsigned.
Solution:   Add a type cast.

src/version.c

@@ -741,6 +741,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    917,
 /**/
     916,
 /**/