clean up redundant test

Credit to Joe Atzberger for cathing this.

Signed-off-by: Galen Charlton <galen.charlton@liblime.com>
Signed-off-by: Henri-Damien LAURENT <henridamien.laurent@biblibre.com>

diff --git a/C4/Acquisition.pm b/C4/Acquisition.pm
index 5fc05ce..d8a6c95 100644 (file)
--- a/C4/Acquisition.pm
+++ b/C4/Acquisition.pm
@@ -731,7 +731,7 @@ sub SearchOrder {
           . ") or biblioitems.isbn=? OR (aqorders.ordernumber=? AND aqorders.biblionumber=?)) ";
     }
     
-    if( $biblionumber and $biblionumber ne "" ){
+    if ( $biblionumber ) {
         $query .= "AND biblio.biblionumber = ? ";
         push (@searchterms, $biblionumber);
     }