From 0a3bcc909a9b023755079ee57f347f33aac75d3e Mon Sep 17 00:00:00 2001
From: Eric Wong <e@80x24.org>
Date: Mon, 16 Aug 2021 05:39:33 +0000
Subject: lei_search: avoid unconditional warning when no exception

Oops, we shouldn't warn on "$@" unless "$@" is truthy.

Fixes: c7bcfe6cd6648ff0 ("lei: diagnostics for /Document \d+ not found/ errors")
---
 lib/PublicInbox/LeiSearch.pm | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'lib/PublicInbox/LeiSearch.pm')

diff --git a/lib/PublicInbox/LeiSearch.pm b/lib/PublicInbox/LeiSearch.pm
index f9e5c8e9..47160ed9 100644
--- a/lib/PublicInbox/LeiSearch.pm
+++ b/lib/PublicInbox/LeiSearch.pm
@@ -64,7 +64,8 @@ sub _xsmsg_vmd { # retry_reopen
 				%L = (%L, %$x);
 			}
 		};
-		warn "$$ $0 #$num (nshard=$self->{nshard}) $smsg->{blob}: $@";
+		warn "$$ $0 #$num (nshard=$self->{nshard}) $smsg->{blob}: $@"
+			if $@;
 	}
 	$smsg->{kw} = [ sort keys %kw ] if scalar(keys(%kw));
 	$smsg->{L} = [ sort keys %L ] if scalar(keys(%L));
-- 
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