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-rw-r--r--lib/PublicInbox/Eml.pm1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/PublicInbox/Eml.pm b/lib/PublicInbox/Eml.pm
index 81a6632b..0697c3a5 100644
--- a/lib/PublicInbox/Eml.pm
+++ b/lib/PublicInbox/Eml.pm
@@ -234,6 +234,7 @@ sub mp_descend ($$) {
 # $cb - user-supplied callback sub
 # $arg - user-supplied arg (think pthread_create)
 # $once - unref body scalar during iteration
+# $all - used by IMAP server, only
 sub each_part {
         my ($self, $cb, $arg, $once, $all) = @_;
         my $p = mp_descend($self, $once // 0) or