patch 8.0.0161: can't build with small features

Problem:    Build fails when using small features.
Solution:   Update #ifdef for using save_ccline. (Hirohito Higashi)
diff --git a/src/ex_getln.c b/src/ex_getln.c
index cf99ae2..162e555 100644
--- a/src/ex_getln.c
+++ b/src/ex_getln.c
@@ -212,7 +212,8 @@
 #endif
     expand_T	xpc;
     long	*b_im_ptr = NULL;
-#if defined(FEAT_WILDMENU) || defined(FEAT_EVAL) || defined(FEAT_SEARCH_EXTRA)
+#if defined(FEAT_WILDMENU) || defined(FEAT_EVAL) \
+    || defined(FEAT_SEARCH_EXTRA) || defined(FEAT_CMDWIN)
     /* Everything that may work recursively should save and restore the
      * current command line in save_ccline.  That includes update_screen(), a
      * custom status line may invoke ":normal". */