using plain assignment to assigne individual values to a has, rather than the...

using plain assignment to assigne individual values to a has, rather than the fat comma used in the larger hash declaration

modules/Bio/EnsEMBL/DBSQL/DBConnection.pm

@@ -1113,8 +1113,8 @@ sub to_hash {
     -USER => $self->username(),
     -DRIVER => $self->driver(),
   };
-  $hash->{-DBNAME} => $self->dbname() if defined $self->dbname();
-  $hash->{-PASS} => $self->password() if defined $self->password();
+  $hash->{'DBNAME'} = $self->dbname() if defined $self->dbname();
+  $hash->{'PASS'} = $self->password() if defined $self->password();
   return $hash;
 }