patch 8.1.1862: Coverity warns for not using return value

Problem:    Coverity warns for not using return value.
Solution:   Add "(void)" to avoid the warning.

src/version.c

@@ -769,6 +769,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1862,
 /**/
     1861,
 /**/