[Cooker] [REBUILD] postgresql-pl against latest perl

[FACORAT Fabrice]

postgresql--pl need to be rebuild against latest perl

perl-5.8.1-0.RC4.2mdk.i586 (perl-base-5.8.1-0.RC4.2mdk.i586 absent)
perl-base-5.8.1-0.RC4.2mdk.i586 (in order to keep
postgresql-pl-7.3.4-1mdk.i586)