Fix incorrect treatment of RL_PROMPT_START_IGNORE/RL_PROMPT_END_IGNORE,

per http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=343616 via Martin Pitt.

src/bin/psql/prompt.c

@@ -3,7 +3,7 @@
  *
  * Copyright (c) 2000-2005, PostgreSQL Global Development Group
  *
- * $PostgreSQL: pgsql/src/bin/psql/prompt.c,v 1.40 2005/10/15 02:49:40 momjian Exp $
+ * $PostgreSQL: pgsql/src/bin/psql/prompt.c,v 1.41 2006/01/03 23:32:30 tgl Exp $
  */
 #include "postgres_fe.h"
 #include "prompt.h"
@@ -296,8 +296,8 @@ get_prompt(promptStatus_t status)
 					 * characters in prompt strings must be marked as such, in
 					 * order to properly display the line during editing.
 					 */
-					buf[0] = '\001';
+					buf[0] = (*p == '[') ? RL_PROMPT_START_IGNORE : RL_PROMPT_END_IGNORE;
-					buf[1] = (*p == '[') ? RL_PROMPT_START_IGNORE : RL_PROMPT_END_IGNORE;
+					buf[1] = '\0';
 #endif   /* USE_READLINE */
 					break;