patch 9.0.0664: bad redrawing with spell checking, using "C" and "$" in 'cpo'

Problem:    Bad redrawing with spell checking, using "C" and "$" in 'cpo'.
Solution:   Do not redraw the next line when "$" is in 'cpo'. (closes #11285)
diff --git a/src/version.c b/src/version.c
index 61f2fd2..ed91d27 100644
--- a/src/version.c
+++ b/src/version.c
@@ -700,6 +700,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    664,
+/**/
     663,
 /**/
     662,