backporting defensive test to prevent warnings

git-svn-id: svn://svn.open-ils.org/ILS/branches/rel_1_2@8104 dcc99617-32d9-48b4-a31d-7c20da2025e4

diff --git a/Open-ILS/src/perlmods/OpenILS/Utils/ModsParser.pm b/Open-ILS/src/perlmods/OpenILS/Utils/ModsParser.pm
index c0f6b7b..e61ae1a 100644 (file)
--- a/Open-ILS/src/perlmods/OpenILS/Utils/ModsParser.pm
+++ b/Open-ILS/src/perlmods/OpenILS/Utils/ModsParser.pm
@@ -214,7 +214,7 @@ sub modsdoc_to_values {
                                        $data->{$class}->{$type} = $arr;
                                }
                        }
-                       $data->{$class}->{$type} =~ s/\s+/ /go;
+                       $data->{$class}->{$type} =~ s/\s+/ /go if ($data->{$class}->{$type});
                }
        }