ensure bytes::length is available to callers

We were relying on Danga::Socket using the "bytes" pragma,
previously.  Nowadays, the "bytes" pragma is not recommended in
general, but bytes::length remains acceptable for getting the
byte-size of a scalar.

1 files changed, 1 insertions, 0 deletions

diff --git a/t/search-thr-index.t b/t/search-thr-index.t
index ab6d1b0f..ed3e4e76 100644
--- a/t/search-thr-index.t
+++ b/t/search-thr-index.t
@@ -2,6 +2,7 @@
 # License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
 use strict;
 use warnings;
+use bytes (); # only for bytes::length
 use Test::More;
 use File::Temp qw/tempdir/;
 use PublicInbox::MID qw(mids);