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/if_tcl.c b/src/if_tcl.c
index 17e20ee..c274b26 100644
--- a/src/if_tcl.c
+++ b/src/if_tcl.c
@@ -735,7 +735,7 @@
 		    i = n;
 		    do
 		    {
-			if (ml_delete((linenr_T)i, FALSE) != OK)
+			if (ml_delete((linenr_T)i) != OK)
 			    goto setListError;
 			++n;
 		    } while (n <= val2);
@@ -783,7 +783,7 @@
 	    }
 	    for (i = 0; i < n; i++)
 	    {
-		ml_delete((linenr_T)val1, FALSE);
+		ml_delete((linenr_T)val1);
 		err = vimerror(interp);
 		if (err != TCL_OK)
 		    break;