Errors

use_warnings
W3C::LinkChecker
valid_signature
Old SIGNATURE detected. Please inform the module author to regenerate SIGNATURE using Module::Signature version 0.82 or newer.
gpg: Signature made Sun 03 Apr 2011 02:40:12 AM JST
gpg:                using RSA key 8779F3447197636C
gpg: Can't check signature: No public key