updated for version 7.4.664
Problem:    When 'compatible' is reset 'numberwidth' is set to 4, but the
            effect doesn't show until a change is made.
Solution:   Check if 'numberwidth' changed. (Christian Brabandt)
diff --git a/src/version.c b/src/version.c
index 8a55ed6..265145a 100644
--- a/src/version.c
+++ b/src/version.c
@@ -742,6 +742,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    664,
+/**/
     663,
 /**/
     662,