patch 7.4.1587

Problem:    Compiler warnings with 64 bit compiler.
Solution:   Add type casts. (Mike Williams)

src/version.c

@@ -748,6 +748,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1587,
 /**/
     1586,
 /**/