Patch 2005-12-23 (c) by Gregor Herrmann, making t-prot.sl run with
slang2. His comment:

| After some fiddling around and reading manuals I found a workaround:
| replace "error" by "message".
| I don't know if this is the canonical solution but at least the
| errors are gone :-)


--- t-prot.sl.2.0.2-1	2005-12-23 19:20:43.000000000 +0100
+++ t-prot.sl	2005-12-23 19:21:24.000000000 +0100
@@ -73,3 +73,3 @@
 	if (f == NULL) {
-		error ("Unable to filter article to "+fname);
+		message ("Unable to filter article to "+fname);
 		return;
@@ -82,3 +82,3 @@
 	if (f == NULL) {
-		error (fname+" could not be opened.");
+		message (fname+" could not be opened.");
 		return;
@@ -90,3 +90,3 @@
 
-	if (0 != remove(fname)) error ("Unable to remove "+fname);
+	if (0 != remove(fname)) message ("Unable to remove "+fname);
 
@@ -97,6 +97,6 @@
 	if (1 == register_hook("read_article_hook", "t_prot")) {
-		error("t-prot filtering activated");
+		message ("t-prot filtering activated");
 	}
 	else {
-		error("t-prot filtering NOT activated");
+		message ("t-prot filtering NOT activated");
 	}
@@ -106,6 +106,6 @@
 	if (1 == unregister_hook("read_article_hook", "t_prot")) {
-		error("t-prot filtering deactivated");
+		message ("t-prot filtering deactivated");
 	}
 	else {
-		error("t-prot filtering NOT deactivated");
+		message ("t-prot filtering NOT deactivated");
 	}