Extraneous locallockfile ignored

Hey folks,

I keep getting this error on mail that I filter to my mailing lists
folder.  I have tried to tweak the rules, but they stop working anyway I
mess with them, so I'm thinking maybe someone can give me a hand.  Here
are the relevant recipes:

:0:
* ^(X-list: |Sender: owner-|X-BeenThere: |Delivered-To: mailing list 
|X-(Mailing-)?List: <|X-Loop: )\/[-A-Za-z0-9_+]+
{
        :0wic
        | mkdir -p listas
        :0w: .listas.lock
        listas/$MATCH/
}

:0:
* ^Sender: \/[-A-Za-z0-9_+]+-(request|approval|owner)
* MATCH ?? ()\/[^-(_at_)]+
{
        :0wic
        | mkdir -p listas
        :0w: .listas2.lock
        listas/$MATCH/
}

Relevant part of my procmail.log, with VERBOSE=on:

procmail: No match on "^(X-list: |Sender: owner-|X-BeenThere: |Delivered-To: mai
ling list |X-(Mailing-)?List: <|X-Loop: )\/[-A-Za-z0-9_+]+"
procmail: Extraneous locallockfile ignored
procmail: Assigning "MATCH="
procmail: Matched "blob-approval"
procmail: Match on "Sender: \/[-A-Za-z0-9_+]+-(request|approval|owner)"
procmail: Matched "blob"
procmail: Match on "()\/[^-(_at_)]+"
procmail: Extraneous locallockfile ignored
procmail: Locking ".lock"
procmail: Unlocking ".lock"
procmail: Executing "mkdir,-p,listas"
procmail: Assigning "LASTFOLDER=mkdir -p listas"
procmail: Locking ".listas2.lock"
procmail: Assigning "LASTFOLDER=listas/blob/new/1027927511.26987_2.arizona"
procmail: Unlocking ".listas2.lock"
procmail: Notified comsat: 
"claviola(_at_)0:/home/claviola/Mail/listas/blob/new/10279
27511.26987_2.arizona"

Thank you,
Carlos.

-- 
Carlos Laviola <carlos(_at_)laviola(_dot_)org>
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