Since this isn't the original source of this data, it's possible that this happened to the description contents at some point in the past. In which case it wouldn't be trivial to fix.
Begin4
Title: "Bigloo, a Scheme to C compiler"
Version: 1.3
Entered-date: 1996-01-01
Description: Bigloo is both a interpreter and a compiler. It is conformant
to IEEE Scheme standard with some extensions from which we can
site regular parsing or pattern matching.
Primary-site: ftp.inria.fr /INRIA/Projects/icsla
4048000 bigloo1.3b.tar.Z
Author: Manuel.Serrano@inria.fr (Manuel Serrano)
Maintained-by: Manuel.Serrano@inria.fr
Copying-policy: Copyleft
End
The bug is not present in the original LSM data (as I showed in another comment), but is present in the JSON data¹:
{"author":"Manuel.Serrano@inria.fr (Manuel Serrano)","primary-site":"ftp.inria.fr /INRIA/Projects/icsla4048000 bigloo1.3b.tar.Z\n","maintained-by":"Manuel.Serrano@inria.fr","entered-date":"1996-01-01","version":"1.3","keywords":"","original-site":"","description":"Bigloo is both a interpreter and a compiler. It is conformantto IEEE Scheme standard with some extensions from which we can\nsite regular parsing or pattern matching.\n","copying-policy":"Copyleft","platforms":"","alternate-site":"","title":"\"Bigloo, a Scheme to C compiler\""}
You can see that the same bug is also affecting other multi-line fields, like “Primary-site” here, and “Alternate-site” for other projects.