Remove generation of an unnecessary warning

We've checked the return for definedness and
assigned an empty string to it ao we don't want
to make it undef again

This is a good argument that cascading if-elses expecially with
long unstructured elses are a bad idea

Signed-off-by: Galen Charlton <gmcharlt@gmail.com>

acqui/basket.pl

@@ -172,7 +172,7 @@ if ( $op eq 'delete_confirm' ) {
             basketgroupname => $basket->{'basketname'});
         
     }
-} elsif ($query->param('op') eq 'reopen') {
+} elsif ($op eq 'reopen') {
     my $basket;
     $basket->{basketno} = $query->param('basketno');
     $basket->{closedate} = undef;