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-rw-r--r--lib/PublicInbox/LEI.pm2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/PublicInbox/LEI.pm b/lib/PublicInbox/LEI.pm
index 56e4c001..7bc7b2dc 100644
--- a/lib/PublicInbox/LEI.pm
+++ b/lib/PublicInbox/LEI.pm
@@ -1567,7 +1567,7 @@ sub request_umask {
 }
 
 sub _stdin_cb { # PublicInbox::InputPipe::consume callback for --stdin
-        my ($lei, $cb) = @_; # $_[-1] = $rbuf
+        my (undef, $lei, $cb) = @_; # $_[-1] = $rbuf
         $_[1] // return $lei->fail("error reading stdin: $!");
         $lei->{stdin_buf} .= $_[-1];
         do_env($lei, $cb) if $_[-1] eq '';