search: remove documentation for "lid:"

I'm not sure it's necessary, since "mid:" is similarly
undocumented.  Also, "t:", "c:", "f:" don't offer boolean
analogues for exact matches on To/Cc/From headers, despite
having similar tokens as List-Id inside angle brackets.

diff --git a/lib/PublicInbox/Search.pm b/lib/PublicInbox/Search.pm
index b7db2b9f7fcc91aacc317ef3e439b6349934083c..cb669e8733e7cd8596d6483ed77f4bb33dd16d66 100644 (file)
--- a/lib/PublicInbox/Search.pm
+++ b/lib/PublicInbox/Search.pm
@@ -122,6 +122,9 @@ my %prob_prefix = (
 );
 
 # not documenting m: and mid: for now, the using the URLs works w/o Xapian
+# not documenting lid: for now, either, it is probably redundant with l:,
+# especially since we don't offer boolean searches for To/Cc/From
+# headers, either
 our @HELP = (
        's:' => 'match within Subject  e.g. s:"a quick brown fox"',
        'd:' => <<EOF,
@@ -141,8 +144,7 @@ EOF
        'f:' => 'match within the From header',
        'a:' => 'match within the To, Cc, and From headers',
        'tc:' => 'match within the To and Cc headers',
-       'lid:' => 'exact contents of the List-Id',
-       'l:' => 'partial match contents of the List-Id header',
+       'l:' => 'match contents of the List-Id header',
        'bs:' => 'match within the Subject and body',
        'dfn:' => 'match filename from diff',
        'dfa:' => 'match diff removed (-) lines',