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-rw-r--r--lib/PublicInbox/LeiInput.pm1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/PublicInbox/LeiInput.pm b/lib/PublicInbox/LeiInput.pm
index de2a8ff1..fa330df5 100644
--- a/lib/PublicInbox/LeiInput.pm
+++ b/lib/PublicInbox/LeiInput.pm
@@ -372,6 +372,7 @@ sub input_only_net_merge_all_done {
 
 # like Getopt::Long, but for +kw:FOO and -kw:FOO to prepare
 # for update_xvmd -> update_vmd
+# returns something like { "+L" => [ @Labels ], ... }
 sub vmd_mod_extract {
         my $argv = $_[-1];
         my $vmd_mod = {};