patch 9.0.0352: using :echowindow in a timer clears part of message

Problem:    using :echowindow in a timer clears part of message
Solution:   Do not use msg_clr_eos().
diff --git a/src/version.c b/src/version.c
index 4c05bb0..e576be3 100644
--- a/src/version.c
+++ b/src/version.c
@@ -708,6 +708,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    352,
+/**/
     351,
 /**/
     350,