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-rw-r--r--lib/PublicInbox/GzipFilter.pm3
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/PublicInbox/GzipFilter.pm b/lib/PublicInbox/GzipFilter.pm
index db8e8397..d6ecd5ba 100644
--- a/lib/PublicInbox/GzipFilter.pm
+++ b/lib/PublicInbox/GzipFilter.pm
@@ -123,9 +123,10 @@ sub http_out ($) {
         };
 }
 
+# returns undef if HTTP client disconnected, may return 0
+# because ->translate can return ''
 sub write {
         my $self = shift;
-        # my $ret = bytes::length($_[1]); # XXX does anybody care?
         http_out($self)->write($self->translate(@_));
 }