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readline: remove redisplay in `rl_display_search`

From: Frédéric Moulins
Subject: readline: remove redisplay in `rl_display_search`
Date: Mon, 11 Jul 2022 19:05:17 +0200

Avoid a double redisplay when using reverse incremental search for
example. `rl_message` already calls `(*rl_redisplay_function)` before
returning, in all cases (`USE_VARARGS` or not).



this was tested on bash-5.2-testing, Bash-5.2-rc1 release.
It should also apply to bash-5.1.

It looked straightforward enough to me once I spotted it.
I hope it is.

Frédéric Moulins

diff --git a/lib/readline/isearch.c b/lib/readline/isearch.c
index 3e398a6c..60fab5d7 100644
--- a/lib/readline/isearch.c
+++ b/lib/readline/isearch.c
@@ -194,7 +194,6 @@ rl_display_search (char *search_string, int flags, int 
   rl_message ("%s", message);
   xfree (message);
-  (*rl_redisplay_function) ();
 static _rl_search_cxt *

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