Fix a mistake during previous merging of Bibtex.pm
Fix a mistake during previous merging of Bibtex.pm

jondo/paperpile,jondo/paperpile,pombredanne/paperpile,pombredanne/paperpile,jondo/paperpile,jondo/paperpile,pombredanne/paperpile,pombredanne/paperpile,jondo/paperpile,pombredanne/paperpile