updated for version 7.3.566

Problem:    Redo after completion does not work correctly when refresh: always
            is not used. (Raymond Ko)
Solution:   Check the compl_opt_refresh_always flag. (Christian Brabandt)

src/version.c

@@ -714,6 +714,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    566,
 /**/
     565,
 /**/