Explain conditional when attaching key index

diff --git a/gatekeeper.pl b/gatekeeper.pl
index 79db0d920e661ceb4d68c05f5cfc15fe26137fca..43f81cd2dc23e7b2e07d801d063bce765fcbc75b 100755 (executable)
--- a/gatekeeper.pl
+++ b/gatekeeper.pl
@@ -3369,6 +3369,7 @@ my @packets;
 
 # sending a report uses the key index
 keyidx_attach if @packets;
+# ... but no report will be sent if there are no packets to process
 
 foreach my $packet (@packets) {
   eval {       # trap exceptions encountered while processing a packet