watchmaildir: use v5.10.1, drop warnings

Declare 5.10.1 to avoid potential compatibility problems with
Perl 7/8 down the line.  We'll rely on the command-line to set
or drop warnings during development, at least.

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/PublicInbox/WatchMaildir.pm b/lib/PublicInbox/WatchMaildir.pm
index 5176ef69..1c7ac6c0 100644
--- a/lib/PublicInbox/WatchMaildir.pm
+++ b/lib/PublicInbox/WatchMaildir.pm
@@ -5,7 +5,7 @@
 #        http://wiki2.dovecot.org/MailboxFormat/Maildir
 package PublicInbox::WatchMaildir;
 use strict;
-use warnings;
+use v5.10.1;
 use PublicInbox::Eml;
 use PublicInbox::InboxWritable qw(eml_from_path warn_ignore_cb);
 use PublicInbox::Filter::Base qw(REJECT);