OPEN is specified to have 'CHARACTER be the default value for :ELEMENT-TYPE, but SBCL defaults to 'BASE-CHAR.
See http://www.lispworks.com/documentation/HyperSpec/Body/f_open.htm#open
OPEN is specified to have 'CHARACTER be the default value for :ELEMENT-TYPE,
but SBCL defaults to 'BASE-CHAR.
See http:// www.lispworks. com/documentati on/HyperSpec/ Body/f_ open.htm# open