Bizzareness of the month awards again

[Robert W. Kerns <RWK at SCRC-TENEX>]

In System 78.63, ZMail 38.5, Symbolics 8.15, Tape 6.5, LMFS 21.39, Canon 9.12, microcode 852, on Retriever:

If you accidentally get a RETURN inserted into your filename minibuffer
this gets passed to the pathname parser.  The pathname parser for at
least LMFILE gladly sends it along.  The FILE protocol prevents this\n from being noticed as part of the pathname, probably just appearing
as a null options list.