         Parameters:  UP | LOW [beg-col# {1} [end#]]
  
 translates letters on the current line to upper or lower case. 
  
 The case  parameter may be "UP" ("U") or "LOW" ("L").  A portion
 of the current line may be translated by specifying the range of
 column numbers "beg-col#" to "end#".  If "end#" is omitted,  the
 remainder of the line is translated. 
