patch 9.0.0532: edit test is flaky when run under valgrind

Problem:    Edit test is flaky when run under valgrind.
Solution:   Send some text to the terminal to trigger a redraw.
diff --git a/src/version.c b/src/version.c
index 29a1b92..02a440b 100644
--- a/src/version.c
+++ b/src/version.c
@@ -700,6 +700,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    532,
+/**/
     531,
 /**/
     530,