Set package in 5.0

[David Vinayak Wallace <GUMBY at MIT-OZ>]

In zwei in Release 5.0 [GC'd Beta Test rev 2], on Lisp Machine Janis Joplin (3600):

I did M-X set package and typed "foo" to the prompt What Package?.  It
accepted the name as a lowercase string and created the package "foo".
It should have created a package named "FOO".