I get usual log events sent to me and notice this one. There was just this one that I saw.
May 6 01:33:21 newmail spamd[25105]: Failed to run WS_URI_RBL SpamAssassin test, skipping: ^I(Modification of non-creatable array value attempted, subscript -1 at /usr/local/lib/perl5/site_perl/5.8.2/Mail/SpamAssassin/SpamCopURI.pm line 179, <GEN15147> line 175. ) May 6 01:33:21 newmail spamd[25105]: Failed to run SPAMCOP_URI_RBL SpamAssassin test, skipping: ^I(Modification of non-creatable array value attempted, subscript -1 at /usr/local/lib/perl5/site_perl/5.8.2/Mail/SpamAssassin/SpamCopURI.pm line 179, <GEN15147> line 175. ) May 6 01:33:21 newmail spamd[25105]: Failed to run BE_URI_RBL SpamAssassin test, skipping: ^I(Modification of non-creatable array value attempted, subscript -1 at /usr/local/lib/perl5/site_perl/5.8.2/Mail/SpamAssassin/SpamCopURI.pm line 179, <GEN15147> line 175. )