ENSCORESW-901: updated incomplete description

modules/Bio/EnsEMBL/Exon.pm

@@ -1034,7 +1034,8 @@ sub flush_supporting_features {
   Example    : @evidence = @{$exon->get_all_supporting_features()};
   Description: Retreives any supporting features added manually by 
                calls to add_supporting_features. If no features have been
-               added manually and this exon is in a database (i.e. it h
+               added manually and this exon is in a database (i.e. it has
+               an adaptor), fetch from the database
   Returntype : listreference of Bio::EnsEMBL::BaseAlignFeature objects 
   Exceptions : none
   Caller     : general