BabylMailbox description: Properly escape the backslashes in the

string representations.

Doc/lib/libmailbox.tex

@@ -34,7 +34,7 @@ mailbox specified by \var{dirname} is made available.
 \begin{classdesc}{BabylMailbox}{fp}
 Access a Babyl mailbox, which is similar to an MMDF mailbox.  Mail
 messages start with a line containing only \code{'*** EOOH ***'} and
-end with a line containing only \code{'\037\014'}.
+end with a line containing only \code{'\e{}037\e{}014'}.
 \end{classdesc}