minor POD improvement

Signed-off-by: Joshua Ferraro <jmf@liblime.com>

diff --git a/C4/Biblio.pm b/C4/Biblio.pm
index b679141..478af99 100755 (executable)
--- a/C4/Biblio.pm
+++ b/C4/Biblio.pm
@@ -814,11 +814,14 @@ sub GetMarcFromKohaField {
 
 =over 4
 
-Returns MARC::Record of the biblionumber passed in parameter.
-the marc record contains both biblio & item datas
+my $record = GetMarcBiblio($biblionumber);
 
 =back
 
+Returns MARC::Record representing bib identified by
+C<$biblionumber>.  If no bib exists, returns undef.
+The MARC record contains both biblio & item data.
+
 =cut
 
 sub GetMarcBiblio {