patch 7.4.1285

Problem:    Cannot measure elapsed time.
Solution:   Add reltimefloat().

src/version.c

@@ -747,6 +747,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1285,
 /**/
     1284,
 /**/