patch 8.2.0853: ml_delete() often called with FALSE argument

Problem:    ml_delete() often called with FALSE argument.
Solution:   Use ml_delete_flags(x, ML_DEL_MESSAGE) when argument is TRUE.
diff --git a/src/normal.c b/src/normal.c
index a39b1d4..f400141 100644
--- a/src/normal.c
+++ b/src/normal.c
@@ -7413,7 +7413,7 @@
 	// line that needs to be deleted now.
 	if (empty && *ml_get(curbuf->b_ml.ml_line_count) == NUL)
 	{
-	    ml_delete(curbuf->b_ml.ml_line_count, TRUE);
+	    ml_delete_flags(curbuf->b_ml.ml_line_count, ML_DEL_MESSAGE);
 	    deleted_lines(curbuf->b_ml.ml_line_count + 1, 1);
 
 	    // If the cursor was in that line, move it to the end of the last