Bug 31143: (follow-up) Add description to fix_invalid_dates.pl

Signed-off-by: Katrin Fischer <katrin.fischer@bsz-bw.de>
(cherry picked from commit 769b394292)
Signed-off-by: Lucas Gass <lucas@bywatersolutions.com>
(cherry picked from commit 4bb4a27fcb)
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>

misc/maintenance/fix_invalid_dates.pl

@@ -27,6 +27,16 @@ use Koha::Script -cron;
 use Data::Dumper;
 use Koha::Database;
 
+=head1 NAME
+
+fix_invalid_dates.pl - Fix invalid dates
+
+=head1 DESCRIPTION
+
+This script fixes any date fields in the database that have '0000-00-00' values (for example: dateofbirth) by updating them to 'NULL'.
+
+=cut
+
 my $verbose = 0;
 my $doit    = 0;