patch 9.0.0329: ":highlight" hangs when 'cmdheight' is zero

Problem:    ":highlight" hangs when 'cmdheight' is zero.
Solution:   Add to msg_col when using the message window. (closes #11014)
diff --git a/src/highlight.c b/src/highlight.c
index 95cdb46..3a12312 100644
--- a/src/highlight.c
+++ b/src/highlight.c
@@ -1429,6 +1429,7 @@
     // If no argument, list current highlighting.
     if (!init && ends_excmd2(line - 1, line))
     {
+	dont_use_message_window();
 	for (i = 1; i <= highlight_ga.ga_len && !got_int; ++i)
 	    // TODO: only call when the group has attributes set
 	    highlight_list_one((int)i);
diff --git a/src/message.c b/src/message.c
index f92c454..0c8280e 100644
--- a/src/message.c
+++ b/src/message.c
@@ -2261,7 +2261,7 @@
 #ifdef HAS_MESSAGE_WINDOW
 
 /*
- * Put text "t_s" until "s" in the message window.
+ * Put text "t_s" until "end" in the message window.
  * "where" specifies where to put the text.
  */
     static void
@@ -2308,7 +2308,7 @@
     redraw_win_later(wp, UPD_NOT_VALID);
 
     // set msg_col so that a newline is written if needed
-    msg_col = (int)STRLEN(t_s);
+    msg_col += (int)(end - t_s);
 }
 #endif
 
diff --git a/src/version.c b/src/version.c
index 5107549..e9c9250 100644
--- a/src/version.c
+++ b/src/version.c
@@ -708,6 +708,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    329,
+/**/
     328,
 /**/
     327,