patch 8.2.4341: command line not redrawn when finishing popup menu

Problem:    Command line not redrawn when finishing popup menu and the screen
            has scrolled up.
Solution:   Redraw the command line after updating the screen. (closes #9722)
diff --git a/src/cmdexpand.c b/src/cmdexpand.c
index 280bf83..79b6a2b 100644
--- a/src/cmdexpand.c
+++ b/src/cmdexpand.c
@@ -331,6 +331,7 @@
     pum_undisplay();
     VIM_CLEAR(compl_match_array);
     update_screen(0);
+    redrawcmd();
 }
 
 void cmdline_pum_cleanup(cmdline_info_T *cclp)