lowercase in print

[Earl A. Killian <EAK at MIT-MC>]

     148. Shall PRIN1 be required or encouraged to print radix
	  specifiers in lower case (e.g., #O instead of #O) for
	  readability?

	      Yes, required.

How about the exponent specifier too, as in 1e6 instead of 1E6?  It makes it
clear to the user that it isn't a symbol since the language uppercases
symbols.